Compare PDF
Side-by-side text diff between two PDFs — local.
How to use Compare PDF
Follow these steps — everything happens instantly in your browser.
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Step 1. Drop your original PDF (A) and modified PDF (B) into the two zones.
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Step 2. Click “Compare PDFs” — text is extracted from both and aligned page-by-page.
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Step 3. Review the diff output and export it as .txt if needed.
Why use this tool
Private by design
All processing happens locally in your browser. Open DevTools → Network and you'll see zero file uploads. Ever.
Instant
No upload wait, no queue, no server round-trip. Results appear the moment you drop a file.
Free & unlimited
No accounts, no watermarks, no daily caps. Use it as many times as you like, forever.
Works everywhere
Desktop, tablet or phone — every tool is responsive and installable as a PWA for offline use.
Frequently asked questions
Everything you might want to know about compare pdf.
Extract Text from PDF
Pull selectable text out of a PDF — copy or download .txt.
PDF to Text
Extract all text from a PDF into a single .txt file — local.
Merge PDF
Combine multiple PDF files into one — free, private, instant.
PDF Metadata Editor
View and edit PDF title, author, subject & keywords — locally.