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Cromagnon vs TweakPDF

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

Cromagnon compared with TweakPDF
DetailCromagnon logo CromagnonTweakPDF logo TweakPDF
What it doesFree private studios and tools for PDFs, documents, spreadsheets, data, images, slides, study, citations, maths and code, all running in your browser Edit text in PDF online, in the same font
StageNot given Not given
FoundedNot given Not given
Based inNot given PL
Pricing modelFree Freemium
PricingAll studios and tools are free with no watermarks or daily limits. A free account adds sync between devices and 50 MB of cloud files, with no charge. Free: 3 files a month, no card needed. Pro: $6 a month, $24 every 6 months ($4/month), or $36 a year ($3/month) for up to 1,000 files a month. All plans renew automatically and can be cancelled anytime.
Key features
  • PDF annotation, highlighting, text and image insertion, signing, redaction, merging, splitting, reordering, compressing, form filling, password protection and OCR
  • Word document creation with real DOCX file format export
  • Excel spreadsheet editing with working formulas
  • CSV data cleaning, reshaping and charting
  • Flashcard study with FSRS memory model and eight study modes
  • Citation formatting in APA, MLA, Chicago, Harvard, IEEE and 13 more styles
  • Mathematical problem solving with step-by-step answers
  • Photo editing with color grading, compression and format conversion
  • Offline installation as browser app with sync on reconnect
  • Support for 107 languages and right-to-left scripts
  • Edit text in document's own font without shifting layout
  • Deleted text is removed from file, not hidden
  • Edit scanned PDFs by patching images
  • Add signatures to PDFs
  • Preview before download
  • Font substitution with warning
  • Edit without account signup
  • Support for up to 100 pages and 25 MB files
What makes it different
  • All processing happens in your browser with no file uploads required
  • No account needed to use any studio or tool
  • Completely free with no watermarks, trials, daily limits or ads
  • Works offline as an installable browser app
  • Deleted, not hidden: replaced text is completely removed from the file, making it truly searchable and editable
  • No layout shift: new text sits on the same baseline in the document's original font
  • Works on scanned PDFs: patches images and draws new text where no text layer exists
  • Sign PDFs with actual ink, not certified digital signatures
Community votes00
DR (Domain Rating by Ahrefs)13 +1 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)016
Referring domains (Majestic)02

5 details filled in for both companies.

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