utilvo-com/pdf-damage-classifier
Tabular Classification • Updated
Datasets:
file stringlengths 14 27 | has_pdf_header float64 1 1 | eof_in_last_1k float64 0 1 | ends_with_eof float64 0 1 | startxref_present float64 0 1 | startxref_numeric float64 0 1 | startxref_points_to_xref float64 0 1 | xref_valid_fraction float64 0 1 | has_trailer float64 0 1 | root_object_exists float64 0 1 | obj_endobj_gap float64 0 0.25 | stream_endstream_gap float64 0 1 | log10_size float64 2.81 4.44 | label stringclasses 6
values |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
valid_0000.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.058768 | valid |
valid_0001.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.864689 | valid |
valid_0002.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.127332 | valid |
valid_0003.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.922466 | valid |
valid_0004.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.047664 | valid |
valid_0005.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.941511 | valid |
valid_0006.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.247359 | valid |
valid_0007.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.03583 | valid |
valid_0008.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.871573 | valid |
valid_0009.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.872622 | valid |
valid_0010.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.228631 | valid |
valid_0011.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.937869 | valid |
valid_0012.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.299355 | valid |
valid_0013.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.841172 | valid |
valid_0014.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.122511 | valid |
valid_0015.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.175309 | valid |
valid_0016.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.215558 | valid |
valid_0017.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.50637 | valid |
valid_0018.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.168792 | valid |
valid_0019.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.462697 | valid |
valid_0020.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.178919 | valid |
valid_0021.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.337938 | valid |
valid_0022.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.240624 | valid |
valid_0023.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.02914 | valid |
valid_0024.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.17745 | valid |
valid_0025.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.183611 | valid |
valid_0026.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.413803 | valid |
valid_0027.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.004837 | valid |
valid_0028.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.288026 | valid |
valid_0029.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.084183 | valid |
valid_0030.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.822822 | valid |
valid_0031.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.210319 | valid |
valid_0032.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.228426 | valid |
valid_0033.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.071845 | valid |
valid_0034.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.315719 | valid |
valid_0035.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.190051 | valid |
valid_0036.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.054958 | valid |
valid_0037.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.041037 | valid |
valid_0038.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.309439 | valid |
valid_0039.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.152533 | valid |
valid_0040.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.046066 | valid |
valid_0041.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.053232 | valid |
valid_0042.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.949341 | valid |
valid_0043.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.107074 | valid |
valid_0044.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.262356 | valid |
valid_0045.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.152411 | valid |
valid_0046.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.033504 | valid |
valid_0047.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.174205 | valid |
valid_0048.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.049373 | valid |
valid_0049.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.030154 | valid |
valid_0050.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.700531 | valid |
valid_0051.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.087888 | valid |
valid_0052.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.338397 | valid |
valid_0053.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.227604 | valid |
valid_0054.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.192958 | valid |
valid_0055.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.223522 | valid |
valid_0056.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.277495 | valid |
valid_0057.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.059904 | valid |
valid_0058.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.89993 | valid |
valid_0059.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.23434 | valid |
valid_0060.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.168497 | valid |
valid_0061.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.180126 | valid |
valid_0062.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.090928 | valid |
valid_0063.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.321474 | valid |
valid_0064.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.305093 | valid |
valid_0065.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.212294 | valid |
valid_0066.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.423246 | valid |
valid_0067.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.104453 | valid |
valid_0068.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.182443 | valid |
valid_0069.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.176294 | valid |
valid_0070.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.254935 | valid |
valid_0071.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.68993 | valid |
valid_0072.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.2402 | valid |
valid_0073.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.238673 | valid |
valid_0074.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.125091 | valid |
valid_0075.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.293473 | valid |
valid_0076.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.03563 | valid |
valid_0077.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.248219 | valid |
valid_0078.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.184379 | valid |
valid_0079.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.104146 | valid |
valid_0080.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.298635 | valid |
valid_0081.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.989983 | valid |
valid_0082.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.714833 | valid |
valid_0083.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.576341 | valid |
valid_0084.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.009536 | valid |
valid_0085.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.202652 | valid |
valid_0086.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.55582 | valid |
valid_0087.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.091421 | valid |
valid_0088.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.2464 | valid |
valid_0089.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.481729 | valid |
valid_0090.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.569842 | valid |
valid_0091.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.192902 | valid |
valid_0092.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.662569 | valid |
valid_0093.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.842422 | valid |
valid_0094.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.360006 | valid |
valid_0095.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.960946 | valid |
valid_0096.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 3.803252 | valid |
valid_0097.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.260501 | valid |
valid_0098.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.159928 | valid |
valid_0099.pdf | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4.213225 | valid |
End of preview. Expand in Data Studio
pdf-corruption-lab
A fully synthetic corpus of damaged PDF files with a known kind and severity of damage, the scripts that generate it, and a ready-to-use feature table. It is meant for testing and benchmarking PDF repair / recovery tools and for training small damage-type classifiers.
Everything here is original: documents are built from scratch with
pdf-lib (MIT). No third-party
documents or models are included.
What is in this repository
| Path | Description |
|---|---|
output/ |
7 hand-checkable reference files: one valid PDF and 6 damaged variants, plus manifest.json |
training/ |
1,200 randomized PDFs (200 per class: pages, fonts, text and images vary) and labels.csv |
features/train.csv |
12 byte-level structural features + label for each training file (powers the dataset viewer) |
generate.js |
regenerates the reference files in output/ |
gen_training.js |
regenerates the randomized training set (seeded, reproducible) |
Damage classes
| Class | Damage | Severity (1-5) |
|---|---|---|
valid |
none | 0 |
missing_eof |
trailing %%EOF removed |
1 |
invalid_startxref |
startxref value is non-numeric |
2 |
scrambled_xref |
xref offsets replaced with bogus values | 3 |
bad_root_reference |
trailer /Root points to a missing object |
3 |
truncated |
file cut at a random point (30-90 % of its length) | 4-5 |
Features (features/train.csv)
has_pdf_header, eof_in_last_1k, ends_with_eof, startxref_present,
startxref_numeric, startxref_points_to_xref, xref_valid_fraction,
has_trailer, root_object_exists, obj_endobj_gap, stream_endstream_gap,
log10_size, and label. The extraction code is in the model repo:
utilvo-com/pdf-damage-classifier.
Regenerate
npm install
node generate.js ./output
node gen_training.js ./training 200
Suggested evaluation for repair tools
For each damaged file, run your tool and record:
- Does the output open in a strict parser?
- How many pages were recovered?
- Was the embedded image preserved (where present)?
Limitations
All files are generated by pdf-lib with classic xref tables (no object streams
or xref streams) and each file has a single kind of damage. Real-world
corruption (bit flips, mixed damage, files from other producers, encryption) is
not represented. Treat results here as a controlled benchmark, not as a
guarantee for real files.
Disclosure
Maintained by the Utilvo team. The organization profile links to our website.
License
MIT. See LICENSE.
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Models trained or fine-tuned on utilvo-com/pdf-corruption-lab