PDFup vs pdfzus

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 pdfzus
Detail	PDFup	pdfzus
What it does	Free browser-based PDF tools for merging, editing, converting and organizing files without uploads	Merge PDFs locally and securely in your browser without uploads or registration
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	DE
Pricing model	Free	Free
Pricing	All tools are completely free with no limits on file size, number of files, or usage frequency.	Completely free with no limits, no subscriptions, no ads, no watermarks
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	Drag and drop file sorting Local browser-based merging with WebAssembly No watermarks on merged PDFs Combine PDFs and image files together Compress merged PDF to target file size No registration required No tracking cookies Dark mode support Mobile-optimized responsive design Offline capable after initial load
What makes it different	100% client-side processing with no file uploads to servers Works offline after initial page load	DSGVO-compliant and safe for sensitive documents like applications and contracts Completely free forever with no limits, ads, or hidden fees Servers located in Germany with TLS encryption Open source code publicly available on multiple platforms for transparency
Community votes	0	0
DR (Domain Rating by Ahrefs)	4 no change since last check	39 no change since last check
Trust Flow (Majestic)	6	13
Citation Flow (Majestic)	28	29
Referring domains (Majestic)	11	233

5 details filled in for both companies.

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