100% Private: Your files are never stored on our servers — they are deleted immediately after processing.
100% Private: Your files are never stored on our servers — they are deleted immediately after processing.
Combine multiple PDF files into a single, well-organized document. Whether you need to merge reports, invoices, scanned pages or contracts, our free online PDF merger keeps the original quality intact and processes your files in seconds — no registration, no watermark, no limits.
Click the upload area or drag & drop your PDF files into it.
Add as many PDFs as you need (up to 25 files) and arrange them in the right order using the up/down arrows.
Click the Merge PDFs button to start combining.
Download your single merged PDF — done in seconds.
Rearrange files with one click before merging, so the final document reads exactly the way you want.
Pages, fonts, images and links are preserved bit-for-bit. The merged PDF looks identical to the originals.
Merge up to 25 files at once, each up to 100 MB, with no daily cap and no account required.
Your files are processed in memory and deleted immediately after the job finishes. Nothing is stored.
You can merge up to 25 PDF files in a single job, and each file can be up to 100 MB. There is no daily limit and no sign-up required.
No. Merging only concatenates pages from each document — text stays sharp, images keep their resolution and all formatting is preserved.
Yes. After uploading, use the up and down arrows next to each file to arrange them. The merged PDF follows exactly that order.
Yes, merging PDFs on impdf.app is 100% free. No watermark is added and you never need to create an account.