PDF4U vs BytesPDF

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

PDF4U compared with BytesPDF
Detail	PDF4U	BytesPDF
What it does	Free PDF tools that run in your browser without uploading files to servers	Merge, compress and edit PDFs in your browser without uploading
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Free	Freemium
Pricing	Not given	Core tools: Free. BytesPDF Pro: $9.99/month for target-size compression, batch rename and rotate, folder import, local OCR and digital signatures.
Key features	Not given	PDF compression with image-focused presets Merge up to 20 PDFs on desktop or 10 on mobile Edit PDF with text and marks Digital PDF signatures with PKCS#7 Password protect PDFs with AES-256 encryption OCR to make scans searchable Redact text or draw boxes on PDFs Team Workspace with activity feed
What makes it different	Files never leave your device - all processing happens in your browser No sign-up, no account required Unlimited usage with no daily caps or watermarks Works on phones, tablets and computers Available in 16 languages	All processing happens in your browser; PDFs never uploaded to servers No account, signup, email or watermark required Clear, published file limits (150 MB desktop, 50 MB mobile) 18 tools for compression, merging, conversion, OCR, security and collaboration Transparent comparisons with competitors on data handling
Community votes	0	0
DR (Domain Rating by Ahrefs)	17 +1 (up) since last check	18 no change since last check
Trust Flow (Majestic)	4	0
Citation Flow (Majestic)	23	11
Referring domains (Majestic)	24	9

3 details filled in for both companies.