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PDF Trends 2026 Q2: Analysis of 20.6M PDFs from Common Crawl
- rensike 1mo ago[flagged]
- smartdev01 1mo agoThe analysis provides a large-scale view of how PDF technology is used across the public web and establishes a foundation for future reports on PDF in general with focus on Tagged PDF, PDF/UA adoption, and accessibility trends. The final dataset contains: 20,578,394 PDF documents approximately 38 TB of source data
- JilBill 1mo agoWhat methodology did you use?
- smartdev01 1mo agoFor each PDF we extracted: basic metadata: page count file size creation and modification dates PDF version (including Version entry in the document catalog) producer and creator encryption information and permissions annotations presence of interactive forms presence of optional content layers presence of digital signatures image only (scanned) pages Tagged PDF information: stats on the use of structure element types logical structure tree validation against ISO 32005
- smartdev01 1mo agoThis first part of the June 2026 Common Crawl PDFs analysis reveals several long-term characteristics of PDF usage on the public web: Most PDFs remain relatively small, short documents. Encryption is uncommon and generally does not prevent document access. Accessibility text extraction is enabled in most encrypted documents, although a significant minority still disables it. PDF 1.7 continues to dominate document production. Proprietary extensions remain common, particularly in annotation workflows. Link annotations dominate all other annotation types combined.
- ccgreg 1mo agoThe post says: > Because Common Crawl stores only the first 1 MB of each PDF That limit became 5 MB in March 2025.
- rensike 1mo ago[flagged]
- to21as 1mo ago[flagged]