PDF and documents
PDF Merge
Combine multiple PDFs into one
🔒 See this tool’s privacy notes for local processing and external service details. Site analytics are described in our privacy policy.
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Upload PDFs (multiple)
Quick guide
What can PDF Merge help you do?
Free PDF merge tool. Combine multiple PDFs into a single file and drag to reorder the input files. Files never uploaded.
Best for
Combine two or more PDF quotes, scans, or chapters in order. Drag rows, remove mistakes, and replace merged.pdf with a meaningful output name.
How to use it
Add at least two PDFs, drag rows into order, remove duplicates, and edit merged.pdf. Merge & Download copies every page into a new file with pdf-lib.
How to read the result
Check total pages and file boundaries. Text usually remains, but bookmark navigation, attachments, or forms may change.
Privacy and limits
PDF data stays in browser memory. jsDelivr sees the pdf-lib request, not documents; closing the tab clears files.
Encrypted or signed PDFs may fail. Signatures may be invalid after merging; keep originals.
Frequently Asked Questions
Are files uploaded?
No, processed entirely in your browser using pdf-lib.
How many PDFs at once?
Theoretically unlimited, but keep under 50 to avoid memory issues.