This 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 relative

This 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.