diff --git a/qpdf/qtest/appearance_streams.test b/qpdf/qtest/appearance-streams.test
index 764a34c..25232c6 100644
--- a/qpdf/qtest/appearance_streams.test
+++ b/qpdf/qtest/appearance-streams.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('appearance_streams');
+my $td = new TestDriver('appearance-streams');
 
 my $n_tests = 12;
 
diff --git a/qpdf/qtest/arg_parsing.test b/qpdf/qtest/arg-parsing.test
index edf24d4..b8bd105 100644
--- a/qpdf/qtest/arg_parsing.test
+++ b/qpdf/qtest/arg-parsing.test
@@ -13,7 +13,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('arg_parsing');
+my $td = new TestDriver('arg-parsing');
 
 my $n_tests = 13;
 
diff --git a/qpdf/qtest/basic_parsing.test b/qpdf/qtest/basic-parsing.test
index d150ba9..7d43236 100644
--- a/qpdf/qtest/basic_parsing.test
+++ b/qpdf/qtest/basic-parsing.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('basic_parsing');
+my $td = new TestDriver('basic-parsing');
 
 my @goodfiles = ("implicit null",                       # 1
                  "direct null",                         # 2
diff --git a/qpdf/qtest/bound_checks.test b/qpdf/qtest/bound-checks.test
index 50cef2c..46f8637 100644
--- a/qpdf/qtest/bound_checks.test
+++ b/qpdf/qtest/bound-checks.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('bound_checks');
+my $td = new TestDriver('bound-checks');
 
 my $n_tests = 3;
 
diff --git a/qpdf/qtest/c_api_check.test b/qpdf/qtest/c-api-check.test
index 29c8746..916bd12 100644
--- a/qpdf/qtest/c_api_check.test
+++ b/qpdf/qtest/c-api-check.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('c_api_check');
+my $td = new TestDriver('c-api-check');
 
 my @c_check_types = qw(warn clear);
 my $n_tests = scalar(@c_check_types);
diff --git a/qpdf/qtest/c_api_key.test b/qpdf/qtest/c-api-key.test
index 4a47b13..88b8058 100644
--- a/qpdf/qtest/c_api_key.test
+++ b/qpdf/qtest/c-api-key.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('c_api_key');
+my $td = new TestDriver('c-api-key');
 
 my $n_tests = 4;
 
diff --git a/qpdf/qtest/c_api_object_handle.test b/qpdf/qtest/c-api-object-handle.test
index 2a257ab..40511df 100644
--- a/qpdf/qtest/c_api_object_handle.test
+++ b/qpdf/qtest/c-api-object-handle.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('c_api_object_handle');
+my $td = new TestDriver('c-api-object-handle');
 
 my $n_tests = 13;
 
diff --git a/qpdf/qtest/c_api_page.test b/qpdf/qtest/c-api-page.test
index 4fbc8db..5b68b05 100644
--- a/qpdf/qtest/c_api_page.test
+++ b/qpdf/qtest/c-api-page.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('c_api_page');
+my $td = new TestDriver('c-api-page');
 
 my $n_tests = 5;
 
diff --git a/qpdf/qtest/c_api_stream.test b/qpdf/qtest/c-api-stream.test
index a2b041f..1ea2c95 100644
--- a/qpdf/qtest/c_api_stream.test
+++ b/qpdf/qtest/c-api-stream.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('c_api_stream');
+my $td = new TestDriver('c-api-stream');
 
 my $n_tests = 5;
 
diff --git a/qpdf/qtest/c_api.test b/qpdf/qtest/c-api.test
index c834e7d..d0776b1 100644
--- a/qpdf/qtest/c_api.test
+++ b/qpdf/qtest/c-api.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('c_api');
+my $td = new TestDriver('c-api');
 
 my @capi = (
     [2, 'no options'],
diff --git a/qpdf/qtest/character_encoding.test b/qpdf/qtest/character-encoding.test
index 71a3b2c..4626d1f 100644
--- a/qpdf/qtest/character_encoding.test
+++ b/qpdf/qtest/character-encoding.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('character_encoding');
+my $td = new TestDriver('character-encoding');
 
 my $n_tests = 4;
 
diff --git a/qpdf/qtest/check_encryption.test b/qpdf/qtest/check-encryption.test
index fc26f0a..ac061b7 100644
--- a/qpdf/qtest/check_encryption.test
+++ b/qpdf/qtest/check-encryption.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('check_encryption');
+my $td = new TestDriver('check-encryption');
 
 my @check_encryption_password = (
     # file, password, is-encrypted, requires-password
diff --git a/qpdf/qtest/cleartext_metadata.test b/qpdf/qtest/cleartext-metadata.test
index 6b07e59..ce6c7f9 100644
--- a/qpdf/qtest/cleartext_metadata.test
+++ b/qpdf/qtest/cleartext-metadata.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('cleartext_metadata');
+my $td = new TestDriver('cleartext-metadata');
 
 my $n_tests = 58;
 
diff --git a/qpdf/qtest/coalesce_contents.test b/qpdf/qtest/coalesce-contents.test
index c98e6d2..57890f2 100644
--- a/qpdf/qtest/coalesce_contents.test
+++ b/qpdf/qtest/coalesce-contents.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('coalesce_contents');
+my $td = new TestDriver('coalesce-contents');
 
 my $n_tests = 8;
 
diff --git a/qpdf/qtest/compare_pdfs.test b/qpdf/qtest/compare-pdfs.test
index cb7555f..3265ce4 100644
--- a/qpdf/qtest/compare_pdfs.test
+++ b/qpdf/qtest/compare-pdfs.test
@@ -14,7 +14,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('compare_pdfs');
+my $td = new TestDriver('compare-pdfs');
 
 my $n_compare_pdfs = 5;
 
diff --git a/qpdf/qtest/compression_level.test b/qpdf/qtest/compression-level.test
index d8fdfff..aac6f6c 100644
--- a/qpdf/qtest/compression_level.test
+++ b/qpdf/qtest/compression-level.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('compression_level');
+my $td = new TestDriver('compression-level');
 
 my $n_tests = 4;
 
diff --git a/qpdf/qtest/content_preservation.test b/qpdf/qtest/content-preservation.test
index 0cce54c..348d8ec 100644
--- a/qpdf/qtest/content_preservation.test
+++ b/qpdf/qtest/content-preservation.test
@@ -15,7 +15,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('content_preservation');
+my $td = new TestDriver('content-preservation');
 
 my @files = ("encrypted-with-images.pdf", # encrypted
              "inline-images.pdf",
diff --git a/qpdf/qtest/copy_annotations.test b/qpdf/qtest/copy-annotations.test
index eea4fe7..f43f84b 100644
--- a/qpdf/qtest/copy_annotations.test
+++ b/qpdf/qtest/copy-annotations.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('copy_annotations');
+my $td = new TestDriver('copy-annotations');
 
 my $n_tests = 39;
 
diff --git a/qpdf/qtest/copy_foreign_objects.test b/qpdf/qtest/copy-foreign-objects.test
index e12d814..e7419e4 100644
--- a/qpdf/qtest/copy_foreign_objects.test
+++ b/qpdf/qtest/copy-foreign-objects.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('copy_foreign_objects');
+my $td = new TestDriver('copy-foreign-objects');
 
 my $n_tests = 11;
 
diff --git a/qpdf/qtest/custom_pipeline.test b/qpdf/qtest/custom-pipeline.test
index 3aef1e0..7cf9478 100644
--- a/qpdf/qtest/custom_pipeline.test
+++ b/qpdf/qtest/custom-pipeline.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('custom_pipeline');
+my $td = new TestDriver('custom-pipeline');
 
 my $n_tests = 2;
 
diff --git a/qpdf/qtest/dangling_refs.test b/qpdf/qtest/dangling-refs.test
index cdc6f2c..44d3921 100644
--- a/qpdf/qtest/dangling_refs.test
+++ b/qpdf/qtest/dangling-refs.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('dangling_refs');
+my $td = new TestDriver('dangling-refs');
 
 my @dangling = (qw(minimal dangling-refs));
 my $n_tests = 2 * scalar(@dangling);
diff --git a/qpdf/qtest/decode_levels.test b/qpdf/qtest/decode-levels.test
index a4fd08b..c4c6f47 100644
--- a/qpdf/qtest/decode_levels.test
+++ b/qpdf/qtest/decode-levels.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('decode_levels');
+my $td = new TestDriver('decode-levels');
 
 my $n_tests = 14;
 
diff --git a/qpdf/qtest/decode_parameters.test b/qpdf/qtest/decode-parameters.test
index f0b181a..8fed1a1 100644
--- a/qpdf/qtest/decode_parameters.test
+++ b/qpdf/qtest/decode-parameters.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('decode_parameters');
+my $td = new TestDriver('decode-parameters');
 
 my $n_tests = 6;
 
diff --git a/qpdf/qtest/deterministic_id.test b/qpdf/qtest/deterministic-id.test
index d61722f..9aeb7f3 100644
--- a/qpdf/qtest/deterministic_id.test
+++ b/qpdf/qtest/deterministic-id.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('deterministic_id');
+my $td = new TestDriver('deterministic-id');
 
 my $n_tests = 11;
 
diff --git a/qpdf/qtest/disable_filter_on_write.test b/qpdf/qtest/disable-filter-on-write.test
index b513992..0192895 100644
--- a/qpdf/qtest/disable_filter_on_write.test
+++ b/qpdf/qtest/disable-filter-on-write.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('disable_filter_on_write');
+my $td = new TestDriver('disable-filter-on-write');
 
 my $n_tests = 2;
 
diff --git a/qpdf/qtest/encryption_parameters.test b/qpdf/qtest/encryption-parameters.test
index 20258b1..f6d852c 100644
--- a/qpdf/qtest/encryption_parameters.test
+++ b/qpdf/qtest/encryption-parameters.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('encryption_parameters');
+my $td = new TestDriver('encryption-parameters');
 
 my $n_tests = 13;
 
diff --git a/qpdf/qtest/error_condition.test b/qpdf/qtest/error-condition.test
index 3e243bb..1184deb 100644
--- a/qpdf/qtest/error_condition.test
+++ b/qpdf/qtest/error-condition.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('error_condition');
+my $td = new TestDriver('error-condition');
 
 my $n_tests = 0;
 # $n_tests incremented after initialization of badfiles below.
diff --git a/qpdf/qtest/extensions_dictionary.test b/qpdf/qtest/extensions-dictionary.test
index f7187a5..b16cce3 100644
--- a/qpdf/qtest/extensions_dictionary.test
+++ b/qpdf/qtest/extensions-dictionary.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('extensions_dictionary');
+my $td = new TestDriver('extensions-dictionary');
 
 my @ext_inputs = ('minimal.pdf', 'extensions-adbe.pdf',
                   'extensions-other.pdf', 'extensions-adbe-other.pdf');
diff --git a/qpdf/qtest/filter_abbreviations.test b/qpdf/qtest/filter-abbreviations.test
index 54e4216..cb552b8 100644
--- a/qpdf/qtest/filter_abbreviations.test
+++ b/qpdf/qtest/filter-abbreviations.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('filter_abbreviations');
+my $td = new TestDriver('filter-abbreviations');
 
 my $n_tests = 2;
 
diff --git a/qpdf/qtest/final_version.test b/qpdf/qtest/final-version.test
index 1fe65fe..fe3f576 100644
--- a/qpdf/qtest/final_version.test
+++ b/qpdf/qtest/final-version.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('final_version');
+my $td = new TestDriver('final-version');
 
 my $n_tests = 1;
 
diff --git a/qpdf/qtest/fix_qdf.test b/qpdf/qtest/fix-qdf.test
index cd63e2a..e46ee9c 100644
--- a/qpdf/qtest/fix_qdf.test
+++ b/qpdf/qtest/fix-qdf.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('fix_qdf');
+my $td = new TestDriver('fix-qdf');
 
 my $n_tests = 5;
 
diff --git a/qpdf/qtest/flatten_annotations.test b/qpdf/qtest/flatten-annotations.test
index 700ed22..5d071db 100644
--- a/qpdf/qtest/flatten_annotations.test
+++ b/qpdf/qtest/flatten-annotations.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('flatten_annotations');
+my $td = new TestDriver('flatten-annotations');
 
 my $n_tests = 0;
 
diff --git a/qpdf/qtest/form_xobject.test b/qpdf/qtest/form-xobject.test
index 2f5817b..3183a21 100644
--- a/qpdf/qtest/form_xobject.test
+++ b/qpdf/qtest/form-xobject.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('form_xobject');
+my $td = new TestDriver('form-xobject');
 
 my $n_tests = 22;
 
diff --git a/qpdf/qtest/from_scratch.test b/qpdf/qtest/from-scratch.test
index 2bb097d..9412052 100644
--- a/qpdf/qtest/from_scratch.test
+++ b/qpdf/qtest/from-scratch.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('from_scratch');
+my $td = new TestDriver('from-scratch');
 
 my $n_tests = 2;
 
diff --git a/qpdf/qtest/get_xref.test b/qpdf/qtest/get-xref.test
index dc7432d..2341110 100644
--- a/qpdf/qtest/get_xref.test
+++ b/qpdf/qtest/get-xref.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('get_xref');
+my $td = new TestDriver('get-xref');
 
 my $n_tests = 2;
 
diff --git a/qpdf/qtest/image_optimization.test b/qpdf/qtest/image-optimization.test
index a4671bf..1b3901e 100644
--- a/qpdf/qtest/image_optimization.test
+++ b/qpdf/qtest/image-optimization.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('image_optimization');
+my $td = new TestDriver('image-optimization');
 
 my @image_opt = (
     ['image-streams', 'image-streams', ''],
diff --git a/qpdf/qtest/inline_images.test b/qpdf/qtest/inline-images.test
index b868f74..c8552ab 100644
--- a/qpdf/qtest/inline_images.test
+++ b/qpdf/qtest/inline-images.test
@@ -14,7 +14,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('inline_images');
+my $td = new TestDriver('inline-images');
 
 my $n_compare_pdfs = 0;
 my $n_tests = 10;
diff --git a/qpdf/qtest/interactive_form.test b/qpdf/qtest/interactive-form.test
index 009f560..59c4af6 100644
--- a/qpdf/qtest/interactive_form.test
+++ b/qpdf/qtest/interactive-form.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('interactive_form');
+my $td = new TestDriver('interactive-form');
 
 my @form_tests = (
     'minimal',
diff --git a/qpdf/qtest/invalid_objects.test b/qpdf/qtest/invalid-objects.test
index c791450..6491ccd 100644
--- a/qpdf/qtest/invalid_objects.test
+++ b/qpdf/qtest/invalid-objects.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('invalid_objects');
+my $td = new TestDriver('invalid-objects');
 
 my $n_tests = 3;
 
diff --git a/qpdf/qtest/keep_files_open.test b/qpdf/qtest/keep-files-open.test
index 026e648..7218312 100644
--- a/qpdf/qtest/keep_files_open.test
+++ b/qpdf/qtest/keep-files-open.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('keep_files_open');
+my $td = new TestDriver('keep-files-open');
 
 my $n_tests = 4;
 
diff --git a/qpdf/qtest/large_file.test b/qpdf/qtest/large-file.test
index 89598d3..855e7e1 100644
--- a/qpdf/qtest/large_file.test
+++ b/qpdf/qtest/large-file.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('large_file');
+my $td = new TestDriver('large-file');
 
 my $large_file_test_path = $ENV{'QPDF_LARGE_FILE_TEST_PATH'} || undef;
 if (defined($large_file_test_path))
diff --git a/qpdf/qtest/library_version.test b/qpdf/qtest/library-version.test
index 8651551..a01c0e3 100644
--- a/qpdf/qtest/library_version.test
+++ b/qpdf/qtest/library-version.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('library_version');
+my $td = new TestDriver('library-version');
 
 my $n_tests = 3;
 
diff --git a/qpdf/qtest/linearize_pass1.test b/qpdf/qtest/linearize-pass1.test
index ed1695b..dfdd2d9 100644
--- a/qpdf/qtest/linearize_pass1.test
+++ b/qpdf/qtest/linearize-pass1.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('linearize_pass1');
+my $td = new TestDriver('linearize-pass1');
 
 my $n_tests = 3;
 
diff --git a/qpdf/qtest/merge_and_split.test b/qpdf/qtest/merge-and-split.test
index 6ffa2e6..8de1f9d 100644
--- a/qpdf/qtest/merge_and_split.test
+++ b/qpdf/qtest/merge-and-split.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('merge_and_split');
+my $td = new TestDriver('merge-and-split');
 
 my $n_tests = 28;
 
diff --git a/qpdf/qtest/merge_dictionary.test b/qpdf/qtest/merge-dictionary.test
index 64d3ff7..ef8dcdb 100644
--- a/qpdf/qtest/merge_dictionary.test
+++ b/qpdf/qtest/merge-dictionary.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('merge_dictionary');
+my $td = new TestDriver('merge-dictionary');
 
 my $n_tests = 3;
 
diff --git a/qpdf/qtest/multiple_indirection.test b/qpdf/qtest/multiple-indirection.test
index c77e149..3cceba1 100644
--- a/qpdf/qtest/multiple_indirection.test
+++ b/qpdf/qtest/multiple-indirection.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('multiple_indirection');
+my $td = new TestDriver('multiple-indirection');
 
 my $n_tests = 2;
 
diff --git a/qpdf/qtest/name_normalization.test b/qpdf/qtest/name-normalization.test
index 72ad5bd..9d76f5c 100644
--- a/qpdf/qtest/name_normalization.test
+++ b/qpdf/qtest/name-normalization.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('name_normalization');
+my $td = new TestDriver('name-normalization');
 
 my $n_tests = 6;
 
diff --git a/qpdf/qtest/name_number_trees.test b/qpdf/qtest/name-number-trees.test
index ae3fa7f..8e6a559 100644
--- a/qpdf/qtest/name_number_trees.test
+++ b/qpdf/qtest/name-number-trees.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('name_number_trees');
+my $td = new TestDriver('name-number-trees');
 
 my $n_tests = 6;
 
diff --git a/qpdf/qtest/newline_before_endstream.test b/qpdf/qtest/newline-before-endstream.test
index 7ac8d36..667a0dd 100644
--- a/qpdf/qtest/newline_before_endstream.test
+++ b/qpdf/qtest/newline-before-endstream.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('newline_before_endstream');
+my $td = new TestDriver('newline-before-endstream');
 
 my $n_tests = 12;
 
diff --git a/qpdf/qtest/numbers_and_strings.test b/qpdf/qtest/numbers-and-strings.test
index 7f93946..8be5b99 100644
--- a/qpdf/qtest/numbers_and_strings.test
+++ b/qpdf/qtest/numbers-and-strings.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('numbers_and_strings');
+my $td = new TestDriver('numbers-and-strings');
 
 my $n_tests = 3;
 
diff --git a/qpdf/qtest/object_copying.test b/qpdf/qtest/object-copying.test
index 88bdf29..54d41b1 100644
--- a/qpdf/qtest/object_copying.test
+++ b/qpdf/qtest/object-copying.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('object_copying');
+my $td = new TestDriver('object-copying');
 
 my $n_tests = 9;
 
diff --git a/qpdf/qtest/object_handle_api.test b/qpdf/qtest/object-handle-api.test
index e8c5bf6..3de5f90 100644
--- a/qpdf/qtest/object_handle_api.test
+++ b/qpdf/qtest/object-handle-api.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('object_handle_api');
+my $td = new TestDriver('object-handle-api');
 
 my $n_tests = 2;
 
diff --git a/qpdf/qtest/object_stream.test b/qpdf/qtest/object-stream.test
index d207944..04d1bb0 100644
--- a/qpdf/qtest/object_stream.test
+++ b/qpdf/qtest/object-stream.test
@@ -14,7 +14,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('object_stream');
+my $td = new TestDriver('object-stream');
 
 my $n_tests = 3 + (36 * 4) + (12 * 2);
 my $n_compare_pdfs = 36;
diff --git a/qpdf/qtest/output_redirection.test b/qpdf/qtest/output-redirection.test
index c9d4a60..13ad88a 100644
--- a/qpdf/qtest/output_redirection.test
+++ b/qpdf/qtest/output-redirection.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('output_redirection');
+my $td = new TestDriver('output-redirection');
 
 my $n_tests = 2;
 
diff --git a/qpdf/qtest/overwrite_self.test b/qpdf/qtest/overwrite-self.test
index 05e0af5..1a150ce 100644
--- a/qpdf/qtest/overwrite_self.test
+++ b/qpdf/qtest/overwrite-self.test
@@ -13,7 +13,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('overwrite_self');
+my $td = new TestDriver('overwrite-self');
 
 my $n_tests = 3;
 
diff --git a/qpdf/qtest/page_api.test b/qpdf/qtest/page-api.test
index 6bae278..0bfff47 100644
--- a/qpdf/qtest/page_api.test
+++ b/qpdf/qtest/page-api.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('page_api');
+my $td = new TestDriver('page-api');
 
 my $n_tests = 11;
 
diff --git a/qpdf/qtest/page_errors.test b/qpdf/qtest/page-errors.test
index c63e58e..7e210d7 100644
--- a/qpdf/qtest/page_errors.test
+++ b/qpdf/qtest/page-errors.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('page_errors');
+my $td = new TestDriver('page-errors');
 
 my $n_tests = 5;
 
diff --git a/qpdf/qtest/page_labels.test b/qpdf/qtest/page-labels.test
index 3c6741a..616dcb6 100644
--- a/qpdf/qtest/page_labels.test
+++ b/qpdf/qtest/page-labels.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('page_labels');
+my $td = new TestDriver('page-labels');
 
 my $n_tests = 3;
 
diff --git a/qpdf/qtest/page_without_contents.test b/qpdf/qtest/page-without-contents.test
index 94db4fe..51f4eb7 100644
--- a/qpdf/qtest/page_without_contents.test
+++ b/qpdf/qtest/page-without-contents.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('page_without_contents');
+my $td = new TestDriver('page-without-contents');
 
 my $n_tests = 7;
 
diff --git a/qpdf/qtest/pages_tree.test b/qpdf/qtest/pages-tree.test
index c0f4b77..4ad260e 100644
--- a/qpdf/qtest/pages_tree.test
+++ b/qpdf/qtest/pages-tree.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('pages_tree');
+my $td = new TestDriver('pages-tree');
 
 my $n_tests = 11;
 
diff --git a/qpdf/qtest/parsed_offset.test b/qpdf/qtest/parsed-offset.test
index c7fad9f..fdcc0f8 100644
--- a/qpdf/qtest/parsed_offset.test
+++ b/qpdf/qtest/parsed-offset.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('parsed_offset');
+my $td = new TestDriver('parsed-offset');
 
 my $n_tests = 2;
 
diff --git a/qpdf/qtest/positive_p.test b/qpdf/qtest/positive-p.test
index 0250a47..ab0bcff 100644
--- a/qpdf/qtest/positive_p.test
+++ b/qpdf/qtest/positive-p.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('positive_p');
+my $td = new TestDriver('positive-p');
 
 my $n_tests = 4;
 
diff --git a/qpdf/qtest/precheck_streams.test b/qpdf/qtest/precheck-streams.test
index 28ece01..c0353b5 100644
--- a/qpdf/qtest/precheck_streams.test
+++ b/qpdf/qtest/precheck-streams.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('precheck_streams');
+my $td = new TestDriver('precheck-streams');
 
 my $n_tests = 2;
 
diff --git a/qpdf/qtest/preserve_unref.test b/qpdf/qtest/preserve-unref.test
index d2f804d..3a29084 100644
--- a/qpdf/qtest/preserve_unref.test
+++ b/qpdf/qtest/preserve-unref.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('preserve_unref');
+my $td = new TestDriver('preserve-unref');
 
 my $n_tests = 6;
 
diff --git a/qpdf/qtest/progress_reporting.test b/qpdf/qtest/progress-reporting.test
index cbef4c1..3c7fb2c 100644
--- a/qpdf/qtest/progress_reporting.test
+++ b/qpdf/qtest/progress-reporting.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('progress_reporting');
+my $td = new TestDriver('progress-reporting');
 
 my $n_tests = 1;
 
diff --git a/qpdf/qtest/qpdf_json.test b/qpdf/qtest/qpdf-json.test
index dbb0c70..dbb0c70 100644
--- a/qpdf/qtest/qpdf_json.test
+++ b/qpdf/qtest/qpdf-json.test
diff --git a/qpdf/qtest/renumber_objects.test b/qpdf/qtest/renumber-objects.test
index b71715c..25998d4 100644
--- a/qpdf/qtest/renumber_objects.test
+++ b/qpdf/qtest/renumber-objects.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('renumber_objects');
+my $td = new TestDriver('renumber-objects');
 
 my $n_tests = 8;
 
diff --git a/qpdf/qtest/replace_input.test b/qpdf/qtest/replace-input.test
index b4f01ac..70a37cc 100644
--- a/qpdf/qtest/replace_input.test
+++ b/qpdf/qtest/replace-input.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('replace_input');
+my $td = new TestDriver('replace-input');
 
 my $n_tests = 8;
 
diff --git a/qpdf/qtest/rotate_pages.test b/qpdf/qtest/rotate-pages.test
index 9d92c04..c5e293e 100644
--- a/qpdf/qtest/rotate_pages.test
+++ b/qpdf/qtest/rotate-pages.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('rotate_pages');
+my $td = new TestDriver('rotate-pages');
 
 my $n_tests = 18;
 
diff --git a/qpdf/qtest/signature_dictionary.test b/qpdf/qtest/signature-dictionary.test
index 54acf67..2c71079 100644
--- a/qpdf/qtest/signature_dictionary.test
+++ b/qpdf/qtest/signature-dictionary.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('signature_dictionary');
+my $td = new TestDriver('signature-dictionary');
 
 my $n_tests = 0;
 
diff --git a/qpdf/qtest/specialized_filter.test b/qpdf/qtest/specialized-filter.test
index 36bcbf0..284d519 100644
--- a/qpdf/qtest/specialized_filter.test
+++ b/qpdf/qtest/specialized-filter.test
@@ -14,7 +14,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('specialized_filter');
+my $td = new TestDriver('specialized-filter');
 
 my $n_tests = 3;
 my $n_compare_pdfs = 1;
diff --git a/qpdf/qtest/specific_bugs.test b/qpdf/qtest/specific-bugs.test
index 6ae6242..326b3e9 100644
--- a/qpdf/qtest/specific_bugs.test
+++ b/qpdf/qtest/specific-bugs.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('specific_bugs');
+my $td = new TestDriver('specific-bugs');
 
 # The number is the github issue number in which the bug was reported.
 my @bug_tests = (
diff --git a/qpdf/qtest/specific_file.test b/qpdf/qtest/specific-file.test
index ce170e1..188f4dd 100644
--- a/qpdf/qtest/specific_file.test
+++ b/qpdf/qtest/specific-file.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('specific_file');
+my $td = new TestDriver('specific-file');
 
 my $n_tests = 11;
 
diff --git a/qpdf/qtest/split_pages.test b/qpdf/qtest/split-pages.test
index 05f8788..46515c4 100644
--- a/qpdf/qtest/split_pages.test
+++ b/qpdf/qtest/split-pages.test
@@ -14,7 +14,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('split_pages');
+my $td = new TestDriver('split-pages');
 
 my $n_tests = 42;
 my $n_compare_pdfs = 2;
diff --git a/qpdf/qtest/stream_data.test b/qpdf/qtest/stream-data.test
index fdd91c3..cd0b45c 100644
--- a/qpdf/qtest/stream_data.test
+++ b/qpdf/qtest/stream-data.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('stream_data');
+my $td = new TestDriver('stream-data');
 
 my $n_tests = 2;
 
diff --git a/qpdf/qtest/stream_line_terminators.test b/qpdf/qtest/stream-line-terminators.test
index 3af93b4..8031889 100644
--- a/qpdf/qtest/stream_line_terminators.test
+++ b/qpdf/qtest/stream-line-terminators.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('stream_line_terminators');
+my $td = new TestDriver('stream-line-terminators');
 
 my $n_tests = 2;
 
diff --git a/qpdf/qtest/stream_replacements.test b/qpdf/qtest/stream-replacements.test
index a67c8c0..8a9874d 100644
--- a/qpdf/qtest/stream_replacements.test
+++ b/qpdf/qtest/stream-replacements.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('stream_replacements');
+my $td = new TestDriver('stream-replacements');
 
 my $n_tests = 10;
 
diff --git a/qpdf/qtest/swap_and_replace.test b/qpdf/qtest/swap-and-replace.test
index c8b08d4..fd13693 100644
--- a/qpdf/qtest/swap_and_replace.test
+++ b/qpdf/qtest/swap-and-replace.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('swap_and_replace');
+my $td = new TestDriver('swap-and-replace');
 
 my $n_tests = 3;
 
diff --git a/qpdf/qtest/token_filters.test b/qpdf/qtest/token-filters.test
index 17d343a..a209b80 100644
--- a/qpdf/qtest/token_filters.test
+++ b/qpdf/qtest/token-filters.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('token_filters');
+my $td = new TestDriver('token-filters');
 
 my $n_tests = 2;
 
diff --git a/qpdf/qtest/type_checks.test b/qpdf/qtest/type-checks.test
index 09047ca..03d75a6 100644
--- a/qpdf/qtest/type_checks.test
+++ b/qpdf/qtest/type-checks.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('type_checks');
+my $td = new TestDriver('type-checks');
 
 my $n_tests = 5;
 
diff --git a/qpdf/qtest/unicode_filenames.test b/qpdf/qtest/unicode-filenames.test
index 1959048..2237b74 100644
--- a/qpdf/qtest/unicode_filenames.test
+++ b/qpdf/qtest/unicode-filenames.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('unicode_filenames');
+my $td = new TestDriver('unicode-filenames');
 
 my $n_tests = 3;
 
diff --git a/qpdf/qtest/unicode_password.test b/qpdf/qtest/unicode-password.test
index 2a80fea..eb78de4 100644
--- a/qpdf/qtest/unicode_password.test
+++ b/qpdf/qtest/unicode-password.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('unicode_password');
+my $td = new TestDriver('unicode-password');
 
 my $n_tests = 0;
 # $n_tests incremented below
diff --git a/qpdf/qtest/weak_cryptography.test b/qpdf/qtest/weak-cryptography.test
index c7491a0..10e72f2 100644
--- a/qpdf/qtest/weak_cryptography.test
+++ b/qpdf/qtest/weak-cryptography.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('weak_cryptography_cryptography');
+my $td = new TestDriver('weak-cryptography-cryptography');
 
 my $n_tests = 4;
 
diff --git a/qpdf/qtest/windows_shell_globbing.test b/qpdf/qtest/windows-shell-globbing.test
index bd58c1e..d2b7851 100644
--- a/qpdf/qtest/windows_shell_globbing.test
+++ b/qpdf/qtest/windows-shell-globbing.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('windows_shell_globbing');
+my $td = new TestDriver('windows-shell-globbing');
 
 my $n_tests = 1;
 
diff --git a/qpdf/qtest/writer_version.test b/qpdf/qtest/writer-version.test
index fc208e6..a491065 100644
--- a/qpdf/qtest/writer_version.test
+++ b/qpdf/qtest/writer-version.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('writer_version');
+my $td = new TestDriver('writer-version');
 
 my $n_tests = 7;
 
diff --git a/qpdf/qtest/xref_errors.test b/qpdf/qtest/xref-errors.test
index 4eb8cd3..9db2711 100644
--- a/qpdf/qtest/xref_errors.test
+++ b/qpdf/qtest/xref-errors.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('xref_errors');
+my $td = new TestDriver('xref-errors');
 
 my $n_tests = 6;
 
diff --git a/qpdf/qtest/xref_streams.test b/qpdf/qtest/xref-streams.test
index 4680886..10a3276 100644
--- a/qpdf/qtest/xref_streams.test
+++ b/qpdf/qtest/xref-streams.test
@@ -12,7 +12,7 @@ require TestDriver;
 
 cleanup();
 
-my $td = new TestDriver('xref_streams');
+my $td = new TestDriver('xref-streams');
 
 my $n_tests = 3;