Merge PDF files
Combine multiple PDFs into a single file — free and private. Everything happens in your browser; files are never uploaded.
Drop files here or click to choose
Images, PDF, Word, Excel, PowerPoint, HEIC, CSV, JSON, Markdown & more. Everything converts in your browser — files never leave your device.
About merging PDFs
Combine any number of PDF files into a single document, in the order you choose. Unlike most online PDF mergers, the files are joined right in your browser — nothing is uploaded, so even confidential documents stay on your device.
What is a PDF file?
PDF is the universal fixed-layout document format — it looks identical on every device and is the standard for sharing, printing, and archiving.
Frequently asked questions
Is it safe to merge PDF files online?
Here, yes — AnyConverter runs entirely in your browser using JavaScript and WebAssembly. Your files are never uploaded to any server, which you can verify by loading the page and then disconnecting from the internet: conversion still works.
How do I merge PDF files?
Drop two or more PDFs into the box above, press Convert, then press "Merge PDFs into one" and the combined file downloads immediately.
Is there a limit on the number or size of PDFs?
No fixed limits — the only constraint is your device's memory, since everything happens locally. Hundreds of pages merge without trouble on a typical laptop.
Is this converter really free?
Yes — free with no signup, no watermarks, no daily limits, and no file size caps. The site is supported by ads instead of subscriptions.
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