Merge PDF
Combine PDFs in the order you want — drag to reorder, then click merge. Free, fast and secure.
or drop PDFs here
Files under 15 MB combined are merged right in your browser — nothing leaves your device.
or import from
By uploading files, you agree to our terms of use
Related tools
Need to combine several PDF documents into one? oMyPDF's Merge PDF tool lets you upload multiple PDFs, drag them into the right order, and download a single merged file in seconds. Files under 15 MB combined are processed entirely in your browser — no upload needed, completely private. Larger batches are securely handled on our servers and deleted immediately after. No watermarks, no sign-up required.
How to merge PDF files
- 1
Upload
Select multiple PDF files from your device, or drag and drop them straight into the upload area.
- 2
Order
Use the up and down arrows to arrange the files in the exact order you want them combined.
- 3
Merge
Click Merge and your combined PDF downloads automatically — ready to share or save.
Merge PDF features
Instant in your browser
Files under 15 MB are merged right on your device — no upload, no waiting, completely private.
Secure by design
Larger files use encrypted server processing and are deleted immediately after merging.
No limits, no sign-up
Merge as many PDFs as you like, with no watermark on the output and no account required.
Security & privacy
Your files stay private. PDFs with a combined size under 15 MB are merged entirely in your browser — no upload, no server contact. For larger batches, files are sent over an encrypted (HTTPS) connection, merged immediately, and permanently deleted. We never store, read, or share your documents.
Frequently asked questions
Is the oMyPDF merge tool really free?
Yes. Merging PDFs is 100% free with no watermark on the output and no sign-up required.
Are my files safe?
Files under a combined 15 MB are merged entirely in your browser and never leave your device. Larger files are sent over an encrypted connection, processed immediately, and deleted right after.
Is there a file size or file count limit?
You can merge as many PDFs as you need. Combined inputs up to 15 MB are processed in your browser; larger batches are routed to our servers automatically.
Can I change the order of the PDFs before merging?
Yes. After adding your files, use the up and down arrows to reorder them. The merged document follows the order shown in the list.
Will the quality of my PDFs change?
No. Pages are copied exactly as they are, so text, images and formatting are preserved at their original quality.