# PDF/A Validator: web app

## What it does
PDF/A Validator. The web app below shows what it does.

## Inputs and limits
The accepted input and the options are shown on the app's own page.

## Web app
Open the web app: [Validate a PDF/A file](https://products.documentize.app/validate-pdfa).

## Related guides

* [Protect PDF files: web app and CLI](/docs/protector)
* [Unlock PDF files: web app and CLI](/docs/unlock)
* [Verify PDF signatures: web app, CLI, MCP and C#](/docs/sign)

## Verification status
**Not verified.** This guide is built from the product documentation and the app's own page, and the app has not passed the checks that run its examples. Written on 2026-11-04; a verified guide replaces this page when it does.