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PDF Analyzer Online

Check your PDF's page count, file size, fonts, images, metadata, encryption status, and other document details.

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Check PDF file and page details

Inspect a PDF's page count, dimensions, metadata, and encryption status before another task. This analyzer reports information about the file; it does not alter the document.

How it works

Choose your file

Drag and drop or select files from your device. Document contents stay in your browser.

Run the tool

Choose any available options, then process or inspect the file.

Review the result

Check the outcome and download a file when the tool creates one.

Frequently Asked Questions

It displays page count, file size, PDF version, metadata (title, author, etc.), encryption status, and per-page dimensions and rotation.
Yes — the analyzer shows the encryption status of your document along with other structural details.

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What Is PDF Document Information?

PDF document information provides a detailed overview of a PDF file's properties, structure, and technical characteristics. This includes page count, page dimensions, file size, metadata, encryption status, PDF version, fonts used, and other internal details.

Knowing your PDF's properties is essential for troubleshooting display issues, verifying security settings, checking compatibility with specific workflows, and understanding why a file behaves a certain way. Print professionals need to verify page dimensions and fonts. IT teams check encryption and PDF versions. Anyone troubleshooting a problematic PDF starts by examining its properties.

One23PDF's PDF Info tool analyzes your document entirely in your browser and presents a clear, organized summary of all key properties. No files are uploaded, no account is needed, and the tool never modifies your document — it's a read-only inspection that keeps your files completely safe and private.

Benefits of Viewing PDF Info with One23PDF

Quick Overview

Get an instant summary of your PDF's key properties — page count, dimensions, file size, metadata, and more — all displayed in a clean, readable format.

Security Details

Check whether a PDF is encrypted, what permissions are set, and which encryption algorithm is used. Essential for verifying document security compliance.

Page Analysis

View individual page dimensions, orientations, and content types. Identify mixed page sizes, landscape pages, or other structural characteristics.

No File Changes

The PDF Info tool is read-only — your document is never modified. It's safe to inspect any file without worrying about accidental changes or corruption.

How to View PDF Information with One23PDF

  1. 1

    Upload Your PDF

    Drag and drop your PDF or click to browse. One23PDF analyzes the file instantly and displays comprehensive property information.

  2. 2

    View Information

    Browse through the organized sections — metadata, page details, security settings, fonts, and file structure. All information is displayed clearly in your browser.

  3. 3

    Export Report (Optional)

    Copy the information to your clipboard or export it as a text report for documentation, troubleshooting records, or audit purposes.

Common Use Cases for PDF Info

  • Checking file properties before submitting to print services
  • Verifying encryption and security settings on confidential documents
  • Troubleshooting PDFs that display incorrectly or fail to open
  • Auditing document properties for compliance and record-keeping
  • Performing pre-flight checks on PDFs before professional printing

One23PDF vs. Other PDF Info Tools

Most PDF readers show basic properties (page count, file size) but hide technical details like encryption algorithms, font embeddings, and PDF version information. Detailed inspection tools like pdfinfo (command-line) or Adobe Acrobat Pro's preflight feature require installation and technical knowledge.

One23PDF provides comprehensive PDF analysis in a simple browser interface — no installation, no command line, and no uploads. Your files are analyzed locally, making it safe to inspect confidential documents without privacy concerns.

Whether you're a print professional verifying specifications, an IT administrator auditing document security, or a user troubleshooting a problematic PDF, One23PDF gives you all the information you need in seconds, free to use.