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Merge PDF files into one

Combine several PDFs — and any JPG or PNG pages — into a single, tidy document. Arthize merges them losslessly so text stays selectable and images stay sharp, and it all happens inside your private workspace, so a contract never lands on a shared public server.

How to merge PDF files

  1. 1

    Open the merge tool

    Sign in and open the Merge tool in your Arthize workspace.

  2. 2

    Add your files

    Add every PDF you want to combine. You can mix in JPG or PNG images — they become pages too.

  3. 3

    Put them in order

    Drag the files (or individual pages) into the order you want them to appear in the final document.

  4. 4

    Merge and download

    Click merge. Arthize rebuilds the page index into one PDF, then the source files are deleted after the job.

Lossless, not a screenshot

A real merge copies the page objects and rebuilds the index, so text stays selectable and searchable — not flattened into images.

Private by default

Files are combined inside your own Arthize instance and removed after the job. Nothing is retained or used to train anything.

Free, no watermark

Merging is on the free plan with no watermark. Paid plans only lift file-size and monthly limits.

Common questions

How do I merge PDF files into one for free?
Open the merge tool, add every PDF (and any JPG/PNG pages), drag them into the order you want, then merge. It's free with no watermark, and the files are deleted after the job.
Will merging reduce the quality of my PDFs?
No. A proper merge is lossless — it copies the existing page objects rather than re-rendering them, so text stays selectable and images keep their original resolution.
Can I merge images and PDFs together?
Yes. Add JPG or PNG files alongside your PDFs and they're inserted as pages, so you can combine scans, photos and documents into one file.

Read the full guide to merging PDFs

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