Visual/Text Diff (Images)

Outputs a ZIP with PNG diff images (red overlay indicates changes).

About This Spell

With a wizard's whisper, Render pages and compute a visual diff to highlight changes. Useful when PDFs differ in layout or content.

How to Cast the Spell

  1. Upload two PDFs.
  2. Choose DPI for rendering.
  3. Compare to download a ZIP of diff images.

Privacy-first processing every time

WizardOfAZ tools do not need registrations, no accounts or sign-up required. Totally Free.

  • Local only: There are many tools like Text tools, some CSV tools, List tools etc. that are only processed on your browser. Data and Documents are transformed on your machine, so nothing is sent to our servers.
  • Transparent progress: Watch the processing banner appear as soon as work begins and know exactly when it completes.
  • Clear safeguards: Every tool links directly to our privacy policy and has been reviewed for accessibility.
  • Secure Process: Some Tools need to be processed in the servers so the Old Wizard processes your files securely on our servers, keeping them for up to 1 hour so your tool can finish its work—after that, they are automatically deleted after 1 Hour.
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What is PDF Compare?

PDF Compare is a free PDF tool from WizardOfAZ. Use it to compare PDF files side by side as part of your sharing polished paperwork, without installing extra software.

Popular ways to use PDF Compare

  • Streamline sharing polished paperwork by using PDF Compare to compare PDF files side by side.
  • Share deliverables faster—processed PDF documents are ready for download in seconds.
  • Combine PDF Compare with other WizardOfAZ tools to keep complex workflows in one browser tab.

Examples and workflow tips

  • Upload a sample file, cast the spell to compare PDF files side by side, and download the processed result instantly.
  • Bookmark the PDF Compare in your browser so recurring tasks stay only one click away.
  • Share the spell with teammates who need a quick, no-install way to compare PDF files side by side.

Frequently asked questions

Is the PDF Compare secure?

Yes. The PDF Compare runs entirely in your browser, which means your documents never leave your device.

What can I do with the PDF Compare?

You can sharing polished paperwork by processing PDF documents without uploading them to an external service.

Can I use PDF Compare on mobile?

Yes. WizardOfAZ tools are responsive, so you can launch the spell on desktops, tablets, or phones without installing extra apps.

Related tools to explore

Expand your toolkit with other WizardOfAZ spells that complement PDF Compare:

  • Annotate PDF — Use it to work with PDF files using flexible options.
  • Bates Numbering — Use it to work with PDF documents using flexible options.
  • Compress PDF — Use it to compress PDF documents without losing quality.