Merge PDF Files Online — Free & 100% Private
Combine multiple PDF files into a single document, in the order you choose — entirely in your browser, with nothing ever uploaded to a server.
Drag & drop PDFs here or
Why use our Merge PDF
Free, private and fast — everything runs in your browser, so your files and text stay on your own device.
How to use Merge PDF
Merge PDF — complete guide
Merging PDFs is most useful when you need to send several related documents as one file — combining an invoice with its receipts, or joining multiple scanned pages of the same form into a single submission. Because merging works at the PDF structure level rather than converting pages to images, your original text stays sharp, selectable, and searchable in the final file.
File order matters as much as the merge itself — reordering before combining means you don't have to fix page order afterward with a separate tool.
Once merged, if the combined file is too large to email, run it through PDF Compressor. If you later need to pull specific pages back out, Extract PDF Pages or Split PDF can do that.
Frequently asked questions
Does merging keep my text selectable?
Yes. Pages are combined at the PDF structure level, not converted to images, so text stays selectable and searchable.
Is there a limit on how many files I can merge?
There's no fixed limit, though very large batches depend on your device's available memory since processing happens locally.
Are my files uploaded anywhere?
No. Merging runs entirely in your browser.
Can I change the order of files before merging?
Yes. Drag files into your preferred order before clicking merge.
Will merging reduce PDF quality?
No. Since pages are copied directly rather than re-rendered, quality is fully preserved.
Can I merge scanned and text-based PDFs together?
Yes, you can combine any mix of PDF types into a single file.
Is this free to use?
Yes, with no sign-up and no limit on how many times you merge files.