UPLOAD
Upload a PDF you want to check or fix. We'll give you 30 free pages to try out Porter Fixer with. Validation is free.
ACCESSIBILITY CHECKER
Validate and correct PDF accessibility
Drop in a PDF. We'll check it and, if you like, fix it too.
Don't just check it, fix it - How Porter Fixer works
VALIDATION
We’ll provide a before-and-after analysis of PDF accessibility compliance (EAA/WCAG).
YOUR FIXED FILES
Your fixed file will be available for download in your free Porter account for 14 days.
FREE TRIAL
We provide 30 pages free of charge. Buy a subscription or a one-off set of pages, depending on what you need.
By uploading, you confirm that you have the right to have this PDF processed. Files are private by default: our team will not inspect their contents unless you explicitly share the PDF with Porter for investigation and improvement. Files are retained for 14 days unless you explicitly choose longer retention. Validating is free, and with an account it's unlimited. By using Porter Fixer, you agree to the Terms of Service, Privacy Policy and, where applicable, Data Processing Agreement.
What Porter Fixer does
Automated accessibility remediation for existing PDFs
Porter Fixer analyses and remediates existing PDFs against WCAG and PDF/UA requirements, helping organisations meet applicable European Accessibility Act requirements.
- Comprehensive remediation: Corrects document structure, tags, reading order and metadata, and adds missing accessibility information.
- Dozens of accessibility checks: Covers document language, descriptions, headings, bookmarks, links, and alternative text for images, charts and graphs.
- Efficient at any volume: Automated remediation is faster and less expensive than manual editing and scales from individual files to large document volumes.
Limitations: Some accessibility issues require changes to the document’s source or visual design, such as complex tables, chart colours and insufficient colour contrast. For recurring documents produced from structured data, Porter Original creates accessible PDFs correctly from the start.
Scanned documents: Porter Fixer does not yet perform optical character recognition (OCR). PDFs containing scanned text must be processed with OCR before being uploaded.
What makes a PDF accessible?
An accessible PDF can be read, understood and navigated by everyone, including people who use screen readers, keyboards or other assistive technologies. It has a logical reading order, properly tagged headings and content, meaningful links, alternative text for informative visuals, and sufficient colour contrast.
Make your next PDF more accessible.
30 free pages. No purchase needed.
Also from Porter
Why remediate accessibility issues when you can build accessible documents from the start? That is what Porter Original does.
Porter is your document engine – from repair to creation. We offer two online software services (SaaS), with nothing to install. Intelligently remediate legacy PDFs with Porter Fixer, or generate fully accessible documents straight from data with Porter Original. No manual cleanup, no inconsistencies – just structured, compliant output at scale.
Porter Original generates fully accessible PDF forms and documents directly from your data sources. Instead of fixing documents afterward, it builds them correctly from the start – structured, tagged, and compliant by design. Porter Original produces PDFs with accessibility that exceeds WCAG and EAA standards. Porter Original saves time and effort when handling large volumes of data. It's fast and reliable. When you regularly produce PDF documents, Porter Original is what you need.
Read more about Porter Original