Private browser PDF editing

Merge PDF files online for free.

Combine multiple PDFs in the order you choose, preserve native pages, and download one new document privately in your browser.

How to merge PDF files online

1. Choose two or more PDF files from your device.
2. Review the previews and move files into the required order.
3. Merge every page locally in your browser.
4. Download one new combined PDF.

Native PDF page merging

PDFMech copies native pages from every source into one combined document without intentionally converting them into screenshots.

Private local PDF merging

Previewing, ordering, merging, validation, and download happen in your browser without uploading the source documents.

Document-level merge limits

Bookmarks, metadata, attachments, scripts, signatures, and some interactive forms or links may not transfer or remain valid.

Merge PDF files online for free FAQ

Are my PDF files uploaded?

No. Previewing, ordering, merging, validation, and download happen locally in your browser.

Can I change the order before merging?

Yes. Use the Move Up and Move Down controls to set the file order. Pages within each PDF keep their original order.

Will merging turn pages into images?

No. PDFMech copies native PDF pages instead of intentionally converting them into screenshots.

Are digitally signed PDFs supported?

They may be merged, but creating a new combined document means the original digital signatures will not remain valid.