PDFup vs OpenDocScan

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

PDFup compared with OpenDocScan
Detail	PDFup	OpenDocScan
What it does	Free browser-based PDF tools for merging, editing, converting and organizing files without uploads	Free document scanner that runs in your browser with no upload, no account, no watermark
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Free	Open source
Pricing	All tools are completely free with no limits on file size, number of files, or usage frequency.	Free, no paid tier
Key features	Merge multiple PDF files Compress PDF file size Edit and annotate PDFs Convert images to PDF and vice versa Create and fill PDF forms Sign PDFs digitally Organize and rotate pages Compare two PDF versions	Find and straighten page edges automatically OCR text recognition for searchable PDFs Lighting correction and image enhancement All processing happens locally on device Works offline after page load No account or sign-up required Add to home screen as web app Adjustable page size and image quality Search across all scanned documents
What makes it different	100% client-side processing with no file uploads to servers Works offline after initial page load	Entirely client-side with zero data upload—privacy verifiable in Network panel Open source under MIT or Apache-2.0 with code publicly auditable No watermarks, page limits, or paid tier—completely free Advanced processing in 182 KB core written in Rust and WebAssembly Works on any device with no installation via browser
Community votes	0	0
DR (Domain Rating by Ahrefs)	4 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	6	0
Citation Flow (Majestic)	28	16
Referring domains (Majestic)	11	4

5 details filled in for both companies.

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