PDF ANALYSIS

Free PDF Accessibility Checker online

Check PDF accessibility.

PDF Accessibility Checker is a free browser tool that lets you check PDF accessibility. Drop your PDF into PDF Accessibility Checker, choose your settings, and save the finished file. PDF Accessibility Checker works on your device only, so no file or text is ever uploaded.

Why use PDF Accessibility Checker

PDF Accessibility Checker runs entirely inside your browser. Your PDF is never uploaded, stored or shared, and nothing is retained once you close the tab.

How to use PDF Accessibility Checker

  1. Add your PDF Drag your PDF onto the drop zone or pick it from your device.
  2. Adjust the options Set the options that control how PDF Accessibility Checker handles your input.
  3. Run the tool PDF Accessibility Checker works instantly on your device, with no queue and no upload wait.
  4. Download the result Save the finished file straight to your device, then reuse the tool as often as you like.

Benefits

Private by design

Your PDF stays on your device while PDF Accessibility Checker works. PDF Accessibility Checker never sends it to a server, so confidential work stays confidential.

Instant results

PDF Accessibility Checker finishes most jobs in under a second because the work happens on your own hardware.

No signup, no limits

Use PDF Accessibility Checker as many times as you want. PDF Accessibility Checker asks for no account, adds no watermark and keeps no paid tier gating the output.

Works offline

Once the page has loaded, PDF Accessibility Checker keeps working without a connection, which helps on flights and locked-down networks.

Who it is for

For students

Students use PDF Accessibility Checker to hand in coursework without installing software: check PDF accessibility on a shared or locked-down machine.

For freelancers

PDF Accessibility Checker helps freelancers send client deliverables quickly, since your PDF never leaves the laptop it was created on.

For HR and admin teams

PDF Accessibility Checker helps HR and admin teams process paperwork quickly, since your PDF never leaves the laptop it was created on.

How it works

PDF Accessibility Checker parses your input in the browser and walks its structure to collect the measurements shown on screen. PDF Accessibility Checker is read-only: the source is held in memory for the session and discarded when you close the tab.

Frequently asked questions

Is PDF Accessibility Checker free to use?

Yes. PDF Accessibility Checker is completely free with no account, no trial and no usage cap. Every feature on this page is available on the first visit.

Does PDF Accessibility Checker upload your PDF to a server?

No. PDF Accessibility Checker processes your PDF inside your browser, so it never reaches a DocTools server. That also means the tool keeps working if your connection drops mid-task.

Is there a file size limit?

The practical ceiling is your device's available memory rather than a server quota. Files up to roughly 100 MB work comfortably on a typical laptop in PDF Accessibility Checker.

Do I need to install anything to use PDF Accessibility Checker?

No installation is needed. PDF Accessibility Checker runs in Chrome, Edge, Firefox and Safari, on desktop and on mobile, with no extension or plugin.

Can I use PDF Accessibility Checker on a phone or tablet?

Yes. The PDF Accessibility Checker interface adapts to small screens and supports touch input, though very large jobs are faster on a desktop browser.

What happens to your PDF when I close the tab?

It is discarded. PDF Accessibility Checker keeps everything in temporary browser memory, so closing the tab removes every trace of the session.

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Last updated: 2026-09-07