fedric95/finepdfs_ita_Latn_metadata_100K

FinePDFs metadata

This dataset provides rich PDF metadata for a uniform random sample of 100,000 documents from the ita_Latn split (Italian, Latin script) of the FinePDFs index. Each PDF was re-fetched from its original Common Crawl WARC record and analyzed with Poppler (pdfinfo, pdffonts) and pdfresurrect.

Why this dataset

FinePDFs is the largest publicly available corpus sourced from PDFs, but it ships only the extracted text and a handful of crawl fields — the structural metadata of the underlying PDF files is not part of it. That metadata, however, is very important for multiple applications: page counts and geometry, embedded fonts and their subsetting, producer/creator toolchains, document timestamps, incremental revision history, encryption and interactive content. These attributes are essential to study document quality and provenance, to assess rendering portability, and to build better filters and deduplication strategies on top of the corpus. This dataset is a proof of concept to explore this direction: it is limited to a small random sample of the Italian split of FinePDFs, but it can be extended to the full dataset in the future.

Each row describes one PDF: identifiers, size, page count and geometry, structure flags, embedded fonts, document timestamps, and provenance fields (URL, crawl, producer/creator).

Note that the PDF author metadata field is intentionally not included in this dataset: it frequently contains personal names and other personally identifiable information, and we prefer not to redistribute it. The producer and creator fields are kept because they describe software toolchains rather than people.

The statistics below were computed over the published rows; all counts are per document.

This work is strongly inspired by the PDF metadata analysis and SAFEDOCS (CC-MAIN-2021-31-PDF-UNTRUNCATED) studies, which also analyzed PDF metadata at scale. A natural evolution of this work, in fact, would be to add some of the analysis they made that I did not include.

License

This dataset is released under the Open Data Commons Attribution License (ODC-By v1.0), the same license as FinePDFs. Its use is also subject to CommonCrawl's Terms of Use. The PDF files themselves remain subject to the rights of their original publishers; users are responsible for how they use the referenced documents.

Citation

If you use this dataset, please cite it and also credit the FinePDFs dataset it is derived from:

@misc{finepdfs_metadata_ita,
      title={FinePDFs metadata: PDF metadata for a 100K sample of the Italian split},
      author={Ricciuti, Federico},
      year={2026},
      publisher = {Hugging Face},
      journal = {Hugging Face repository},
      howpublished = {\url{https://huggingface.co/datasets/fedric95/finepdfs_ita_Latn_metadata_100K}}
}

@misc{kydlicek2025finepdfs,
      title={FinePDFs},
      author={Hynek Kydl{\'{\i}}{\v{c}}ek and Guilherme Penedo and Leandro von Werra},
      year={2025},
      publisher = {Hugging Face},
      journal = {Hugging Face repository},
      howpublished = {\url{https://huggingface.co/datasets/HuggingFaceFW/finepdfs}}
}

Dataset analysis

DATASET ANALYSIS — rows: 87,709  columns: 32

1. revision history (recoverable past content)

n=87,172
single revision (no hidden history): 67,111 (76.99%)
2+ revisions (old versions still in file): 20,061 (23.01%)
heavily rewritten (11+ revisions): 33 (0.04%)

producers of multi-revision documents

      2,867  (81.91% of that producer)  Microsoft® Word 2010
      2,853  (83.11% of that producer)  Microsoft® Word 2016
      2,600  (84.44% of that producer)  Microsoft® Office Word 2007
      2,052  (82.24% of that producer)  Microsoft® Word 2013
      1,888  (85.94% of that producer)  Microsoft® Word per Microsoft 365
      1,119  (82.64% of that producer)  Microsoft® Word 2019
        743  (12.41% of that producer)  (none)
        560  (85.63% of that producer)  Microsoft® Word per Office 365
        127  (88.19% of that producer)  Microsoft® Word 2021
        123  ( 5.80% of that producer)  Adobe PDF Library 15.0
        120  (89.55% of that producer)  Microsoft® Word for Microsoft 365
        118  (83.69% of that producer)  Microsoft® PowerPoint® per Microsoft 365
        115  (82.73% of that producer)  Microsoft® PowerPoint® 2016
        113  (81.88% of that producer)  Microsoft® Excel® 2010
         92  (83.64% of that producer)  Microsoft® Word LTSC

2. active content

is_encrypted: 1,621/87,709 (1.85%)
has_javascript: 105/87,709 (0.12%)
has_suspects: 3/87,709 (0.00%)

interactive form type

   82,384  93.93%  none
    5,317   6.06%  AcroForm
        8   0.01%  XFA
javascript + interactive form: 105 (0.12%)
javascript + encrypted: 7 (0.01%)

3. provenance fingerprints (who generated these files)

producer (top 20)

    3,515   4.01%  Microsoft® Word 2010
    3,449   3.93%  Microsoft® Word 2016
    3,093   3.53%  Microsoft® Office Word 2007
    2,514   2.87%  Microsoft® Word 2013
    2,200   2.51%  Microsoft® Word per Microsoft 365
    2,124   2.42%  Adobe PDF Library 15.0
    1,811   2.06%  Microsoft: Print To PDF
    1,354   1.54%  Microsoft® Word 2019
      997   1.14%  mPDF 6.1
      957   1.09%  GPL Ghostscript 8.15
      873   1.00%  TCPDF 2.5.000_PHP4 (http://www.tcpdf.org)
      816   0.93%  GPL Ghostscript 9.10
      773   0.88%  Adobe PDF Library 10.0.1
      747   0.85%  Adobe PDF Library 11.0
      702   0.80%  Winnovative HTML to PDF Converter 9.12
      696   0.79%  iLovePDF
      684   0.78%  iText 2.1.7 by 1T3XT
      654   0.75%  Microsoft® Word per Office 365
      553   0.63%  mPDF 6.0
      534   0.61%  GPL Ghostscript 9.05

creator (top 15)

    4,010   4.57%  Microsoft® Word 2016
    3,758   4.28%  Microsoft® Word 2010
    3,728   4.25%  PScript5.dll Version 5.2.2
    3,633   4.14%  Writer
    3,241   3.70%  Microsoft® Office Word 2007
    2,713   3.09%  Microsoft® Word 2013
    2,400   2.74%  Microsoft® Word per Microsoft 365
    2,077   2.37%  Word
    1,503   1.71%  Microsoft® Word 2019
    1,094   1.25%  PScript5.dll Version 5.2
      915   1.04%  PDF24 Creator
      864   0.99%  Joomla! 1.5 - Open Source Content Management
      702   0.80%  Microsoft Word
      680   0.78%  Microsoft® Word per Office 365
      588   0.67%  PDFCreator Version 1.7.3

producer x creator pairs (top 15)

    3,512   4.00%  Microsoft® Word 2010 | Microsoft® Word 2010
    3,447   3.93%  Microsoft® Word 2016 | Microsoft® Word 2016
    3,090   3.52%  Microsoft® Office Word 2007 | Microsoft® Office Word 2007
    2,513   2.87%  Microsoft® Word 2013 | Microsoft® Word 2013
    2,200   2.51%  Microsoft® Word per Microsoft 365 | Microsoft® Word per Microsoft 365
    1,807   2.06%  Microsoft: Print To PDF | (none)
    1,354   1.54%  Microsoft® Word 2019 | Microsoft® Word 2019
      855   0.97%  TCPDF 2.5.000_PHP4 (http://www.tcpdf.... | Joomla! 1.5 - Open Source Content Man...
      789   0.90%  mPDF 6.1 | (none)
      702   0.80%  Winnovative HTML to PDF Converter 9.12 | (none)
      696   0.79%  GPL Ghostscript 8.15 | PScript5.dll Version 5.2.2
      654   0.75%  Microsoft® Word per Office 365 | Microsoft® Word per Office 365
      515   0.59%  Adobe PDF Library 11.0 | Acrobat PDFMaker 11 per Word
      508   0.58%  GPL Ghostscript 9.10 | PDFCreator Version 1.7.3
      490   0.56%  iLovePDF | (none)
provenance stripped (neither field): 4,429 (5.05%)

pdf_version

   33,922  38.68%  1.4
   20,532  23.41%  1.5
   17,211  19.62%  1.7
    8,620   9.83%  1.3
    6,469   7.38%  1.6
      784   0.89%  1.2
       91   0.10%  1.0
       48   0.05%  1.1
       29   0.03%  2.0
        3   0.00%  1.8

4. most common titles

documents with a title: 41,572 (47.40%)
distinct titles: 35,500 (85.39% of titled documents)

most common titles (top 20)

      424   1.02%  ISO 15930 - Electronic document file format for prepress digital data exchang...
      311   0.75%  Presentazione standard di PowerPoint
      285   0.69%  Layout 1
      267   0.64%  untitled
      235   0.57%  Prot
      146   0.35%  Diapositiva 1
      136   0.33%  Genova24.it
      121   0.29%  Microsoft Word - Documento1
      108   0.26%  Atti Parlamentari
       85   0.20%  ---
       81   0.19%  FORMATO EUROPEO PER IL CURRICULUM VITAE
       79   0.19%  Foto a pagina intera
       68   0.16%  Roma 15-11-2006
       59   0.14%  Spett
       57   0.14%  Senza titolo
       55   0.13%  Scanned Document
       51   0.12%  Untitled
       50   0.12%  Presentazione di PowerPoint
       50   0.12%  PowerPoint Presentation
       48   0.12%  Documento1

5. timestamps

created: known year 82,524 (94.09%)
  1980: 2 (0.00%)
  1985: 5 (0.01%)
  1995: 1 (0.00%)
  1997: 13 (0.02%)
  1998: 8 (0.01%)
  1999: 21 (0.03%)
  2000: 61 (0.07%)
  2001: 86 (0.10%)
  2002: 124 (0.15%)
  2003: 187 (0.23%)
  2004: 260 (0.32%)
  2005: 369 (0.45%)
  2006: 542 (0.66%)
  2007: 715 (0.87%)
  2008: 960 (1.16%)
  2009: 1,236 (1.50%)
  2010: 1,485 (1.80%)
  2011: 1,825 (2.21%)
  2012: 2,220 (2.69%)
  2013: 2,688 (3.26%)
  2014: 3,165 (3.84%)
  2015: 3,683 (4.46%)
  2016: 4,922 (5.96%)
  2017: 6,293 (7.63%)
  2018: 7,880 (9.55%)
  2019: 8,602 (10.42%)
  2020: 8,628 (10.46%)
  2021: 8,796 (10.66%)
  2022: 7,080 (8.58%)
  2023: 5,524 (6.69%)
  2024: 4,736 (5.74%)
  2025: 404 (0.49%)
  2029: 1 (0.00%)
  2033: 2 (0.00%)
modified: known year 73,418 (83.71%)
  1980: 1 (0.00%)
  1985: 2 (0.00%)
  1997: 1 (0.00%)
  1999: 5 (0.01%)
  2000: 33 (0.04%)
  2001: 53 (0.07%)
  2002: 102 (0.14%)
  2003: 143 (0.19%)
  2004: 192 (0.26%)
  2005: 286 (0.39%)
  2006: 442 (0.60%)
  2007: 596 (0.81%)
  2008: 803 (1.09%)
  2009: 996 (1.36%)
  2010: 1,222 (1.66%)
  2011: 1,516 (2.06%)
  2012: 1,875 (2.55%)
  2013: 2,274 (3.10%)
  2014: 2,738 (3.73%)
  2015: 3,153 (4.29%)
  2016: 4,265 (5.81%)
  2017: 5,482 (7.47%)
  2018: 6,861 (9.35%)
  2019: 7,706 (10.50%)
  2020: 7,870 (10.72%)
  2021: 8,191 (11.16%)
  2022: 6,639 (9.04%)
  2023: 5,166 (7.04%)
  2024: 4,426 (6.03%)
  2025: 379 (0.52%)
date: known year 87,709 (100.00%)
  2013: 94 (0.11%)
  2014: 64 (0.07%)
  2015: 38 (0.04%)
  2016: 296 (0.34%)
  2017: 2,955 (3.37%)
  2018: 6,805 (7.76%)
  2019: 11,347 (12.94%)
  2020: 8,014 (9.14%)
  2021: 13,924 (15.88%)
  2022: 12,170 (13.88%)
  2023: 11,004 (12.55%)
  2024: 17,587 (20.05%)
  2025: 3,411 (3.89%)
created==modified (never re-saved): 49,215/72,333 (68.04%)
modified>created (edited later): 21,805/72,333 (30.15%)
note modified<created (clock skew): 1,313/72,333 (1.82%)
note created before 1993 (predates PDF format): 7/82,524 (0.01%)
note future years: created=3  modified=0

6. post-processing traces (file touched after creation)

is_optimized: 19,951/87,709 (22.75%)
is_tagged: 26,981/87,709 (30.76%)
has_metadata_stream: 45,797/87,709 (52.21%)
has_custom_metadata: 7,065/87,709 (8.06%)
has_user_properties: 1/87,709 (0.00%)

metadata field fill rates

  title         41,572  47.40%
  subject        5,878  6.70%
  keywords       3,985  4.54%
  creator       69,492  79.23%
  producer      81,676  93.12%
  created       82,552  94.12%
  modified      73,428  83.72%

7. content density (text vs scanned)

file_size_bytes n=87,709
  mean=287.9 KB  sum=24.1 GB
num_pages n=87,709
  mean=5.13  sum=449,810
  page buckets:
          1: 31,021 (35.37%)
        2-5: 38,406 (43.79%)
       6-20: 14,392 (16.41%)
     21-100: 3,711 (4.23%)
       100+: 179 (0.20%)
    <10 KB/page (lean text): 6,775 (7.72%)
    10-100 KB/page (typical mixed): 44,969 (51.27%)
    100 KB-1 MB/page (image-heavy): 35,965 (41.00%)

8. page geometry (first page)

page size family

   73,419  83.71%  A4
    8,613   9.82%  other
    2,938   3.35%  Letter
    1,338   1.53%  A3
    1,084   1.24%  A5
      257   0.29%  square
       60   0.07%  Legal

orientation

   79,222  90.32%  portrait
    8,230   9.38%  landscape
      257   0.29%  square

page_rotation

   84,078  95.86%  0
    2,373   2.71%  270
    1,197   1.36%  90
       61   0.07%  180

9. fonts (rendering provenance)

All counts below are per document: a font or flag counts once per
document, regardless of how many times it appears inside it.
rows with fonts: 77,292 (88.12%)
rows with empty fonts list: 0 (0.00%)
rows with null fonts: 10,417 (11.88%)
  mean=6.80

font type (documents containing)

   52,177  67.51%  TrueType
   41,098  53.17%  CID TrueType
   16,905  21.87%  Type 1
   11,545  14.94%  Type 1C
    1,360   1.76%  CID Type 0C
      373   0.48%  Type 3
       66   0.09%  CID Type 0C (OT)
       13   0.02%  Type 1C (OT)
       10   0.01%  unknown
        2   0.00%  CID Type 0

font base_name (documents containing)

   20,172  26.10%  Calibri
   18,000  23.29%  ArialMT
   16,350  21.15%  TimesNewRomanPSMT
   15,749  20.38%  Helvetica
   10,913  14.12%  Arial-BoldMT
   10,320  13.35%  TimesNewRomanPS-BoldMT
    9,977  12.91%  Helvetica-Bold
    9,665  12.50%  Arial
    9,272  12.00%  Times-Roman
    7,580   9.81%  Calibri-Bold
    6,707   8.68%  Times New Roman
    6,281   8.13%  TimesNewRomanPS-ItalicMT
    6,094   7.88%  Times-Bold
    5,899   7.63%  Verdana
    5,489   7.10%  Symbol
    5,387   6.97%  Arial,Bold
    5,276   6.83%  SymbolMT
    4,953   6.41%  Calibri,Bold
    4,602   5.95%  Arial-ItalicMT
    4,440   5.74%  Helvetica-Oblique
embedded  docs with >=1 embedded font: 67,362/77,292 (87.15%)
subset    docs with >=1 subset font: 59,295/77,292 (76.72%)
unicode   docs with >=1 unicode font: 59,403/77,292 (76.86%)
docs all fonts embedded: 38,820/77,292 (50.23%)
docs with non-embedded font (system-font dependent): 38,472/77,292 (49.77%)

10. crawl provenance

Common Crawl dump

    2,540   2.90%  CC-MAIN-2021-49
    2,466   2.81%  CC-MAIN-2021-43
    2,299   2.62%  CC-MAIN-2023-50
    2,282   2.60%  CC-MAIN-2022-49
    2,225   2.54%  CC-MAIN-2024-10
    2,223   2.53%  CC-MAIN-2022-27
    2,215   2.53%  CC-MAIN-2023-40
    2,206   2.52%  CC-MAIN-2023-14
    2,177   2.48%  CC-MAIN-2023-23
    2,107   2.40%  CC-MAIN-2023-06
    2,069   2.36%  CC-MAIN-2022-33
    2,044   2.33%  CC-MAIN-2020-40
    1,977   2.25%  CC-MAIN-2024-18
    1,957   2.23%  CC-MAIN-2022-05
    1,909   2.18%  CC-MAIN-2024-51
    1,908   2.18%  CC-MAIN-2024-42
    1,898   2.16%  CC-MAIN-2022-21
    1,890   2.15%  CC-MAIN-2024-30
    1,866   2.13%  CC-MAIN-2019-04
    1,792   2.04%  CC-MAIN-2021-39
    1,772   2.02%  CC-MAIN-2018-51
    1,741   1.98%  CC-MAIN-2022-40
    1,717   1.96%  CC-MAIN-2020-45
    1,714   1.95%  CC-MAIN-2025-08
    1,704   1.94%  CC-MAIN-2021-04
    1,700   1.94%  CC-MAIN-2024-46
    1,697   1.93%  CC-MAIN-2025-05
    1,656   1.89%  CC-MAIN-2024-33
    1,615   1.84%  CC-MAIN-2021-21
    1,539   1.75%  CC-MAIN-2019-39

host (top)

      202   0.23%  burp.regione.puglia.it
      186   0.21%  senato.it
      183   0.21%  regione.piemonte.it
      179   0.20%  documenti.camera.it
      175   0.20%  web.uniroma1.it
      136   0.16%  genova24.it
      116   0.13%  cpxsports.com
      111   0.13%  sigecweb.beniculturali.it
      109   0.12%  orticalab.it
      106   0.12%  unipa.it
      101   0.12%  serviziweb.asur.marche.it
       97   0.11%  c3dem.it
       93   0.11%  www4.ti.ch
       92   0.10%  altarimini.it
       91   0.10%  comune.napoli.it
       88   0.10%  inps.it
       87   0.10%  diritto.it
       82   0.09%  fitarco-italia.org
       81   0.09%  siracusaoggi.it
       79   0.09%  regione.toscana.it

host last label

   65,435  74.60%  it
   10,019  11.42%  com
    4,353   4.96%  org
    1,828   2.08%  net
    1,767   2.01%  ch
    1,581   1.80%  eu
      501   0.57%  info
      189   0.22%  de
      179   0.20%  edu
      177   0.20%  va
       84   0.10%  sm
       69   0.08%  uk
       61   0.07%  br
       57   0.06%  tk
       57   0.06%  biz
done

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Generated by metadata_statistics.py at commit b04eb3e from fedric95/finepdfs_ita_Latn_metadata_100K on 2026-08-04.