Merge PDFs Locally — Process PDFs Without Any Server
Merging PDFs locally means the entire operation happens in your browser using pdf-lib, a JavaScript library. Your PDF files are read from your local file system, merged in memory, and the output is downloaded directly to your device — no bytes are transmitted to any server at any point.
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PDF merging runs entirely in your browser with pdf-lib — no file is ever sent to a server.
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Free · No upload · No account required
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Frequently Asked Questions
- How is this different from other PDF mergers?
- Most PDF mergers (Smallpdf, iLovePDF, PDF24 online tools) upload your files to their servers for processing. This merger processes everything in your browser.
- Can I merge password-protected PDFs?
- Password-protected PDFs need to be unlocked first. Use the PDF Unlock tool to remove the password before merging.