Your easy solution for PDF Accessibility Validation
PDF4WCAG helps quickly and easily validate the accessibility of PDF documents against multiple accessibility standards such as WCAG, PDF/UA-1, PDF/UA-2, Well-Tagged PDF(WTPDF). It is powered by the veraPDF validation architecture and is identical to veraPDF in Machine verifiable checks of PDF/UA and WTPDF validation profiles. PDF4WCAG is developed and supported by Dual Lab.
Why choose PDF4WCAG?
Automated Accessibility Checker: instantly checks PDFs for WCAG compliance.
Powered by proven veraPDF technology.
Include experimental AI-based implementation of human checks
Detailed issue identification: provides clear feedback with suggestions for improvement.
Easy to use Web interface: upload your PDF, and get results in seconds.
No expertise required: designed for anyone, regardless of technical knowledge.
Desktop application compatible with Windows, Linux and macOS: data privacy guaranteed.
WCAG 2.2 Human rules add verification of the appropriate use of PDF tags based on experimental AI model.
Supports PDF 2.0 and PDF/UA-2
FREE for non-commercial use
API under commercial license
How to use PDF4WCAG?
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Upload your PDF document, choose validation profile and start validation.
Get the report with the list of errors, visual preview of the related content, and additional technical details.
Inspect the corresponding tag(s) in the document structure tree.
Who will benefit from using PDF4WCAG
- Content makers & designers
- Developers & technical specialists
- Corporations & legal professionals
- Government agencies
- Accessibility consultants, remediators
Begin your journey to accessible, easy-to-use digital documents with PDF4WCAG.
Contact us: pdf4wcag@duallab.com
About Dual Lab
Founded in 2008, Dual Lab specializes in science- and technology-intensive software development across multiple domains including PDF Technologies, complex Document Management workflows, 3D Modelling, Fintech and others.
Dual Lab is a partner member of PDF Association and the developer of veraPDF.
For more information, please visit our website.
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