Merge PDF files.
Open a PDF, then combine it with another using the Merge button — entirely in your browser.
Drop your PDF here
No registration. Files are processed on your device only.
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PiddyFree. No sign-up. Nothing uploaded.
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How it works
Piddy runs entirely in your browser. When you open a file, it's read and edited on your own device using JavaScript — nothing is sent to a server. When you're done, the edited PDF is generated locally and downloaded straight to your computer.
Why private
Because your file never leaves your device, there's nothing to leak, store or lose. No account, no upload, no server-side copy of your document — ever.
Frequently asked questions
- How many files can I merge?
- Open your first PDF, then use the Merge button to combine it with a second PDF. Repeat to add more files.
- Does merging keep the page order?
- Yes, pages from the second file are appended after the pages of the current document, in order.
- Are my files uploaded to merge them?
- No, merging happens entirely in your browser using local processing — nothing is sent to a server.
- Can I reorder pages after merging?
- Yes, use the page panel to reorder, rotate or delete any page before downloading the merged PDF.
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