PDFup vs PDNob

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 PDNob
Detail	PDFup	PDNob
What it does	Free browser-based PDF tools for merging, editing, converting and organizing files without uploads	AI-powered PDF editor for Windows and Mac with OCR, conversion, and editing capabilities
Stage	Not given	Established
Founded	Not given	2007
Based in	Not given	HK
Pricing model	Free	Freemium
Pricing	All tools are completely free with no limits on file size, number of files, or usage frequency.	Lifetime License for $64.99 USD. Free version with full feature trial available.
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	AI-powered OCR with 16+ language support PDF editing with text and image manipulation Batch conversion to 30+ formats Chat with PDF using AI Fillable form creation and e-signing PDF annotation with 100+ shapes Page organization and batch processing Screen recording and screenshot tools
What makes it different	100% client-side processing with no file uploads to servers Works offline after initial page load	Self-developed PDFium engine opens 100+ page PDFs in 1 second with no lag or crashes Batch process up to 1 million files at once without size limits Source-backed AI answers with clickable page references for verification Free lifetime upgrades with no subscription required
Community votes	0	0
DR (Domain Rating by Ahrefs)	4 no change since last check	73 no change since last check
Trust Flow (Majestic)	6	24
Citation Flow (Majestic)	28	55
Referring domains (Majestic)	11	4682

5 details filled in for both companies.

More alternatives to PDFup More alternatives to PDNob