Combine or divide documents
Merge chapters and scans into one file, or split a long PDF into smaller parts.
PDF Editing Tools
Merge, split, compress, rotate, protect, unlock and OCR PDF files online.
- Merge PDF - Combine multiple PDF files into a single document.
- Split PDF - Split a PDF into individual pages or custom page ranges.
- Compress PDF - Reduce the file size of your PDF while maintaining quality.
- Rotate PDF - Rotate all or selected pages in a PDF by 90, 180, or 270 degrees.
- Protect PDF - Add a password to your PDF to prevent unauthorized access.
- Unlock PDF - Remove password protection from a PDF (requires knowing the password).
- Reorder PDF Pages - Drag and drop to rearrange pages in your PDF document.
- Extract Pages - Extract specific pages from a PDF into a new document.
- OCR PDF - Make scanned PDFs searchable using optical character recognition.
FlowToPDF's editing tools cover everything you do with an existing PDF: merge several files into one, split a PDF by page range or extract single pages, compress a large PDF to fit an email limit, rotate pages, add or remove a password, and run OCR to make scanned pages searchable. Each tool runs free in your browser with no signup, no watermark, and automatic file deletion within 30 minutes. Upload files up to 50 MB (merge combines up to 20 files) and download the result in seconds.
Why use these tools
Make big PDFs emailable
Compress an oversized PDF so it fits a 25 MB Gmail or 20 MB Outlook attachment limit.
Fix and secure pages
Rotate sideways scans, add a password to sensitive files, or unlock ones you own.
Search scanned documents
OCR adds a real text layer so you can find names, clauses and dates in scans.
Frequently asked questions
How do I split a PDF into separate files?
Open the Split PDF tool, choose "extract every page" or enter ranges like "1-3, 5, 7-9", then download the parts as individual PDFs or a ZIP.
How do I merge PDF files?
Use Merge PDF to combine up to 20 files. Drag to set the order, then download one combined PDF.
How much can I compress a PDF?
Image-heavy PDFs can shrink 50-80%. Text-only PDFs shrink less because text is already compact. Text stays crisp at every level.
Are these PDF tools free?
Yes — merge, split, compress, rotate, protect, unlock and OCR are all free with no signup or watermark.
What is the maximum file size?
Up to 50 MB per file (merge combines up to 20 files). Split a larger PDF first if needed.
Are my files safe?
Yes. Files are transferred over HTTPS, processed temporarily and deleted automatically within 30 minutes.