Merge PDF Files Online
Combine multiple PDF documents into a single file in seconds. Drag your files in, arrange the order, and download the merged PDF — free and private.
What does it mean to merge PDFs?
Merging PDFs means combining two or more separate PDF files into one continuous document, keeping every page in the order you choose. Unlike putting files in a zip archive, a merged PDF opens as a single readable document — page one flows straight into the next file's first page. It is the simplest way to turn scattered documents into one tidy file you can email, upload or print.
When should you merge PDF files?
- Reports and proposals: join chapters or sections written as separate files into one final report.
- Invoices and receipts: combine a month's invoices with their receipts for clean bookkeeping.
- Scanned documents: turn individually scanned pages into a single multi-page PDF.
- Job applications: bundle your CV, cover letter and certificates into one file for portals that accept only a single attachment.
- Study material: merge lecture slides and notes into one document for easier revision.
How to merge PDF files in 3 steps
- Drop your files into the box above — select two or more PDFs at once, or add them one by one.
- Arrange the order with the up and down arrows so pages appear exactly where you want them.
- Click "Merge PDFs", name your file, and download the combined document instantly.
Tips for a perfect merge
- Double-check the file order before merging — the arrows make reordering effortless.
- Merging is completely lossless: text and images keep their original quality.
- Password-protected PDFs may fail to merge; unlock them first if you own them.
- Very large files depend on your device's memory, since everything runs locally in your browser.
FAQs
Is it free to merge PDF files?
Yes — merging is completely free with no signup, no watermarks and no limit on how many files you combine at once.
Are my PDF files uploaded to a server?
No. The merge happens entirely in your browser with JavaScript. Your documents never leave your device, so private files stay private.
Can I change the order of the PDFs before merging?
Yes. Use the up (↑) and down (↓) arrows next to each file to arrange them in the exact order you want in the final document.
Does merging change the quality of my PDFs?
No. Pages are copied losslessly into the new document, so text and images look exactly as they did in the originals.
Is there a file size limit?
There is no artificial limit, but very large files (hundreds of megabytes) depend on your device's available memory since everything runs locally.