PDF Accessibility Checker
Scan any PDF for the accessibility issues that block screen readers — missing tags, undeclared language, scanned-image pages, and unlabeled form fields.
Upload a PDF to audit
Checks tagging, language, text layer, and form labels for screen-reader compatibility.
Accessibility Checker
Audits your PDF against common screen-reader and WCAG-adjacent requirements: tagging, declared language, real text layers, and labeled form fields — all analyzed locally.
About the PDF Accessibility Checker Engine
Check a PDF for common barriers that affect screen-reader users before publishing it. This browser-based PDF accessibility checker reviews useful signals such as document tags, language settings, text layers, and form-field labels while keeping the file on your device.
Zero-Server Privacy Architecture
Unlike conventional web utilities that transmit your files to cloud processing clusters, iCreatePDF executes pdf accessibility checker completely client-side. WebAssembly modules and local JavaScript engines handle all parsing, layout calculation, rendering, and file encoding inside your browser sandboxed memory buffer. Your files never cross network boundaries.
How to PDF Accessibility Checker Step-by-Step
- 1
Open the PDF
Select the document you want to review locally.
- 2
Run the accessibility audit
Inspect tags, declared language, searchable text, and form labels.
- 3
Review flagged issues
Use the results to identify where the source document needs remediation.
- 4
Update the source file
Correct the document in its authoring tool, then rerun the check.
Technical Specifications & Engine Details
| Specification | Implementation Standard |
|---|---|
| Processing Environment | 100% Client-Side WebAssembly (WASM) & HTML5 Canvas |
| Network Security | Zero Server Uploads (0 Bytes Transmitted) |
| PDF Compliance | ISO 32000-1 / ISO 32000-2 Specification Standards |
| File Size & Page Limits | Unlimited (Bounded only by client RAM capacity) |
| Cross-Platform Support | Google Chrome, Apple Safari, Mozilla Firefox, Microsoft Edge (Desktop & Mobile) |
| Pricing & License | 100% Free Forever (No Paywall / No Registration) |
Practical Use Cases & Workflows
- Preflight a public PDF for accessibility issues
- Check whether a scanned PDF contains real selectable text
- Review form labels before distributing an application
- Support a PDF accessibility remediation workflow
Frequently Asked Questions
Q: Can this checker make my PDF WCAG compliant?
It identifies common signals and issues, but accessibility conformance still requires reviewing the document content and repairing the source where needed.
Q: Does it detect scanned-image PDFs?
Yes. It checks whether a useful text layer is present, which helps identify documents that may need OCR.
Q: Are files uploaded for the audit?
No. The audit runs in your browser and the PDF remains on your device.
Editorial Quality & Fact-Checking Standard
Verified by Barath R · Lead Software Engineer & iCreatePDF Technical Team
This technical documentation and interactive utility guide is published in compliance with Google Publisher Quality Guidelines, E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) principles, and web accessibility standards. For policy questions, visit our AdSense Policy page or Privacy Policy.