Free forever · Ad supported only
Merge, split, compress, annotate, sign, batch-process, and chat with your PDFs — all inside a polished, dark-mode studio. No upsells. No forced logins.
Why ads?
PDFFlow will always be free. Ads pay the bills so creators, students, and teams never hit a paywall. No tracking beyond what the ad network requires.
Drop files or click
Unlimited uploads · Max 100 MB per file
We store files ephemerally for processing only. No accounts, no history unless you opt in later.
Files
0
Unlimited, session-based storage
Workspace size
0 B
Files auto-expire after processing
Secure sandbox
Private
Files never leave this session unless exported
Popular tools
Launch directly from your current workspace.
Merge PDF
Drag and drop to reorder, then merge unlimited PDFs with one click.
Split PDF
Extract custom ranges or every page into its own polished PDF.
Compress PDF
Light, balanced, and max compression modes with instant previews.
Peder · PDF chat
Peder summarizes, answers questions, and surfaces action items using your own OpenAI credits.
Power features
Reorder & Rotate
Flip, rotate, insert blanks, and reorder with a tactile canvas UI.
Protect PDF
Lock documents with AES-level protection and custom restrictions.
Unlock PDF
Strip printing and editing locks when you know the password.
PDF → Word
Preserve layout while turning PDFs into clean Word files.
Word → PDF
One-click DOCX to PDF conversion with font + spacing fidelity.
PDF → Image
Export every page as retina-grade images.