PDF Document Accessibility Checker

PDFs are ubiquitous on the web — used for reports, invoices, contracts, menus, forms, and government documents. Yet over 90% of PDFs are inaccessible to screen readers, keyboard users, and people with cognitive disabilities. The core problem: most PDFs are created as visual documents without the underlying tag structure that assistive technology needs.

PDF accessibility failures account for a significant share of ADA complaints, especially against government, healthcare, education, and financial services websites. The ADA Title II deadline of April 24, 2026 explicitly includes downloadable documents, and the European Accessibility Act covers digital documents provided through web services. A single inaccessible PDF linked from your website can trigger a legal complaint.

PDF accessibility failures occur both at the document level and at the web page level where PDFs are linked. CompliScan detects these web-page-level issues:

• PDF links without format indication — links to PDF files that don't indicate the file type, leaving screen reader users to discover they've opened a PDF only after the file loads, potentially losing their place in the website.
• Missing alternative HTML versions — WCAG recommends providing HTML alternatives to PDF documents. Many sites offer PDF-only content without an accessible alternative format.
• Untagged PDF documents — PDFs without a tag structure (headings, paragraphs, lists, tables) are unreadable by screen readers, which interpret them as a flat sequence of characters without structure or meaning.
• Scanned image PDFs — documents created by scanning paper without OCR (Optical Character Recognition) are entirely inaccessible — they contain only images of text, with no actual text content for screen readers to read.

Run a free CompliScan scan on pages that link to PDF documents. The scanner identifies page-level issues with PDF link labeling, format indication, and the availability of alternative formats.

For PDF links, always indicate the format and file size: <a href="report.pdf">Annual Report 2025 (PDF, 2.4 MB)</a>. For new PDFs, create them with accessibility in mind from the start: use heading styles in Word/InDesign, add alt text to images, create proper table structures, and export with "Tagged PDF" enabled. For existing PDFs, use Adobe Acrobat Pro's accessibility checker or PAC (PDF Accessibility Checker) to tag and remediate documents.

Where possible, provide HTML alternatives to PDF content. An accessible web page is always more accessible than even a well-tagged PDF, because HTML works natively with all assistive technologies. CompliScan's Shield plan ($49/mo) monitors your site weekly for new PDF links that lack proper labeling.

Downloadable PDF documents are explicitly covered by accessibility regulations. The ADA Title II April 2026 deadline requires all government documents, including PDFs, to meet WCAG 2.1 AA. Section 508 has long required accessible documents from federal agencies. The European Accessibility Act covers documents provided through digital services.

Courts have awarded significant damages for inaccessible PDFs. In 2023, a class action against a healthcare provider resulted in a $1.2 million settlement partly due to inaccessible patient forms distributed as PDFs. Government agencies have faced enforcement actions specifically for inaccessible PDF forms and publications.

CompliScan's automated page scanning catches approximately 30-40% of WCAG issues related to how PDFs are linked and presented on your website. For the PDF documents themselves, specialized tools like PAC 3 or Adobe Acrobat's accessibility checker are needed for internal document remediation.