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Advanced PDF Validation Tool
v2.1.0

Upload PDF Document

Drag & Drop Your PDF Here

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Supports PDF files up to 100MB

Validation Options

Document Structure
Metadata & Content
Accessibility
Resources
Security & Compliance

Why Did My PDF Fail?

It's frustrating when a PDF refuses to open, shows blank pages, or gets rejected by an upload portal with a vague "Error" message. Often, this is due to hidden internal corruption, broken XRef tables, or missing standards compliance. Our PDF Validator Pro performs a deep health check on your file free and online. It scans the internal structure, validates Metadata and Linearization (Fast Web View), and checks for Accessibility Tags to tell you exactly what is wrong and whether your file is safe to share or archive.

How to Validate a PDF:

What Does It Check?

FAQ: Checking PDF Health and Integrity

Q: What does "Linearized" mean?

A: It means the PDF is optimized for the web ("Fast Web View"). It allows the first page to display in a browser before the entire file finishes downloading.

Q: My file failed validation. How do I fix it?

A: The simplest fix is often to open the PDF in a reliable viewer (like Chrome or Adobe) and choose "Print to PDF" or "Save As". This often rebuilds the internal structure.

Q: Why check accessibility tags?

A: Tags are required for screen readers (used by visually impaired people). Many government and academic submissions reject PDFs that are missing these tags.