Merge PDF files

Choose a PDF or drop them here

Processed on this device. Nothing is uploaded.

Short answer

Add two or more PDFs, drag them into the order you want, and press Merge. The combined file is built in your browser and saved straight to your downloads — nothing is uploaded and there is no page limit.

Next step

Split a PDF Compress a PDF Add page numbers to a PDF

Doing more than one thing?

The full editor puts every operation in one workspace with undo, so you are not exporting and re-opening between each step. Same engine, same privacy, still nothing uploaded.

Open the full editor Browse all tools

Why this one does not upload your file

Almost every free merge pdf files tool works by sending your document to a server, doing the work there, and sending a result back. That is a cost decision rather than a privacy one — server time costs money, which is why those tools meter you, ask for an account, or cap your file size.

This one runs the same work in your browser using JavaScript, so your file never travels anywhere. There is no upload step, no queue, no account, and no page limit — and the page keeps working if you disconnect from the internet partway through.

You do not have to take that on trust. Open your browser's network tab and watch while you work, or read how it works.

What happens to your file

It is read from your disk into this tab's memory
Every change happens on your own processor
The result is built in memory, reopened and checked before you are offered it
Your original file is never modified
Closing the tab releases everything — nothing is stored

Questions

Straight answers

Is there a limit on how many PDFs I can merge?

No. The practical limit is your device's memory, which comfortably handles dozens of ordinary documents.

Can I change the order before merging?

Yes. Files appear in a list you can reorder before you merge, and you can remove any file you added by mistake.

Does merging reduce quality?

No. Pages are copied across intact — text stays text, images keep their original resolution. Nothing is re-encoded.

More tools

Everything else, also free

Split a PDFOpen your PDF, choose how many pages each output file should contain, and press Split. Compress a PDFOpen your PDF and choose a quality level. Rotate PDF pagesOpen your PDF, turn every page at once or click individual pages to rotate just those, then download. Delete pages from a PDFOpen your PDF, click the pages you want gone, and download the result. Extract pages from a PDFOpen your PDF and either type a range such as 3-7, or click the pages you want in the grid. Convert PDF to JPGOpen your PDF, pick a resolution and image format, and every page is rendered to an image in your browser. Convert images to PDFAdd your images, drag them into order, choose a page size, and they become a single PDF built in your browser. Add page numbers to a PDFOpen your PDF, choose where the numbers go and what format to use, and they are added as real embedded text — so they stay selectable and searchable in any reader.

See all 18 tools →