Combine multiple PDF files into one document
Select 2 or more PDFs · Max 20MB each
All PDF files merged successfully.
PDF merging is the process of combining multiple PDF documents into a single PDF file. Instead of dealing with several separate documents, you get one consolidated file that's easier to share, archive, print, or send by email. PDF merging is essential for businesses combining contracts and invoices, students assembling research papers, professionals preparing reports, and anyone working with multi-document workflows. Unlike printing and re-scanning, digital merging preserves the original quality, text searchability, and document structure of every input file.
Common use cases include: combining contracts and signatures into one document, joining monthly reports into a yearly archive, merging scanned receipts for expense reports, assembling chapters of an ebook, consolidating invoices for accounting, joining presentation slides with supporting documents, and preparing comprehensive submissions for legal or administrative purposes.
1. Click the upload area or drag 2 or more PDF files
2. Files are merged in the order you select them
3. Click "Merge PDFs" to start the process
4. Click "Download merged.pdf" to save the combined file
✅ 100% free — no signup, no watermark, no subscription
✅ Lossless merge preserves original quality and formatting
✅ Works on Windows, Mac, Linux, Android, iOS — any browser
✅ Privacy-first — files auto-deleted after 1 hour
✅ No software installation required
✅ Each file can be up to 20MB
Simply upload 2 or more PDF files using the upload area, click the Merge button, and download the combined PDF. Files are merged in the order you select them. The whole process takes just a few seconds.
You can merge as many PDF files as you need in a single operation, with each file up to 20MB in size. There is no hard limit on the number of files, but very large operations may take longer to process.
No. The merge process preserves the original quality, fonts, images, and formatting of each PDF. Pages from each document are simply combined into a single file without any compression or modification.
Yes. Files are processed on our secure server and automatically deleted within 1 hour. We never store, share, or analyze your documents. The merger is also free and requires no signup.
Currently the tool works with unprotected PDFs. If your file is password-protected, please remove the password before merging. Adobe Acrobat, Preview, or other PDF editors can remove passwords if you have the original.
☕ Support FileTools
Enter any amount in USD and click PayPal to donate