Every fact, statistic, and research finding on PdfPix can be traced to its original source. This page lists all 18 sources used in our research, statistics, and case studies — with publication info, type, and notes on how each was used.
PdfPix sources are drawn from three categories: (1) industry research from established firms (Adobe, Gartner, McKinsey, Pew Research, DocuSign, Nitro Software), (2) international standards (ISO 32000, ISO 19005, ISO 14289), and (3) open source technology documentation (Tesseract, pdf-lib, PDF.js). Every claim is tagged with a confidence rating and a source publication. Statistics are reported as published — we don't extrapolate, estimate, or massage numbers.
If you find a claim that lacks a citation, please let us know. If you find an inaccuracy, we'll correct it transparently with a note in the changelog.
Adobe Systems
Adobe's annual research on PDF and document trends, based on surveys of thousands of knowledge workers worldwide.
Nitro Software, Inc.
Annual benchmark study on document productivity and PDF usage in enterprise environments.
Adobe Systems
Survey of 2,000+ consumers on document format preferences and reading habits.
DocuSign, Inc.
Quantitative comparison of paper-based vs digital document workflows, including e-signature benchmarks.
DocuSign, Inc.
Specific e-signature vs wet-ink signing speed and cost analysis.
Gartner, Inc.
Annual global IT spending forecast including document management, workflow automation, and e-signature.
McKinsey & Company
Multi-year research on digital transformation across industries.
Pew Research
Public opinion research on digital privacy, including user behavior around document tools.
Tesseract, ABBYY, Adobe
Comparative OCR accuracy benchmarks across Tesseract, ABBYY FineReader, and Adobe Acrobat OCR engines.
UsableNet
Annual review of ADA-related web and document accessibility lawsuits in the United States.
Gartner, Inc.
Industry research on archival standards adoption in government and legal sectors.
Pew Research
Survey data on user behavior around privacy and document tools, including trend analysis.
International Organization for Standardization
The official international standard for the PDF format. Definitive reference for PDF behavior.
International Organization for Standardization
The ISO standard for PDF for Archival (PDF/A). Multiple parts: 1, 2, 3 with various conformance levels (a, b, u).
International Organization for Standardization
The ISO standard for PDF Universal Accessibility (PDF/UA). Defines requirements for accessible PDFs.
Google / open source community
The OCR engine used in PdfPix's OCR PDF tool, originally developed by Hewlett-Packard and now maintained by Google and the open source community.
Andrew Dillon / open source
JavaScript library for creating and modifying PDF documents in the browser, used throughout PdfPix for client-side PDF manipulation.
Mozilla
Mozilla's general-purpose PDF library, used by PdfPix for rendering PDF pages in the browser and extracting text content.
We welcome corrections. If you find a fact that needs updating, or want to suggest a new source, please reach out.