PDF Accessibility Checker by WebYes is a browser-based tool that scans uploaded PDFs or public URLs against machine-verifiable WCAG and PDF/UA rules, highlighting issues by severity with remediation guidance.
What the product does and how it is positioned
PDF Accessibility Checker by WebYes is an automated web tool designed to evaluate documents against WCAG Level A and AA success criteria and PDF/UA (ISO 14289) technical tests.
The checker categorizes detected issues by severity, visually highlights problem elements inside the document, and provides rule-mapped remediation guidance for manual document correction.
Source-supported ways to use the product
Authors can check newly created PDFs for missing tags, untagged images, contrast issues, and structure errors prior to publishing them online.
Organizations can scan existing document links against automated WCAG and PDF/UA criteria to assess exposure under Section 508, ADA, or EAA standards.
The documented workflow, where available
Upload a local PDF file or enter the public URL of a document directly in the browser without registering an account.
The tool evaluates the file against machine-verifiable WCAG Level A and AA criteria as well as PDF/UA standards.
Browse issues ranked from critical to minor, filter by severity, and select an issue to view its location highlighted on the document.
Review the plain-language explanation and corresponding WCAG or PDF/UA rule to manually correct identified document defects.
The tool inspects PDFs against machine-verifiable tests from the Web Content Accessibility Guidelines (WCAG Level A and AA) and PDF/UA (ISO 14289). It scans document elements across structure, content, presentation, and form interactions, including heading nesting, list tagging, Unicode font mappings, text contrast minimums, and tab order.
When issues are detected, they are organized in order of severity, from critical to minor. Selecting an issue navigates directly to the corresponding page element and highlights it visually within the PDF view, accompanied by remediation guidance linked to the relevant accessibility criterion.
Checks to run with your own material and workflow
What was checked and when
Answers based on the source-checked product record
No software download or user registration is required. The checker runs directly in a web browser, and users can submit documents without entering an email address.
No. The tool identifies issues and explains how to fix them with rule-mapped guidance, but users must manually apply the corrections to the document.
The tool evaluates documents against all machine-verifiable success criteria of WCAG Level A and AA, as well as machine-verifiable tests in PDF/UA (ISO 14289).
No. A clean scan indicates that the document passed all machine-verifiable tests, but human inspection is still necessary for subjective checks like alt-text accuracy and logical structure.
No. The service does not store uploaded PDF files when running accessibility scans.
