How many PDF files can I merge?

You can merge unlimited PDF files into one combined file.

Can I change the order of files?

Yes, you can easily rearrange files by dragging and dropping them in the desired order.

Is the quality preserved?

Yes, all files are merged without quality loss. Original formatting and resolution are preserved.

Is it safe to merge PDFs online — do my files stay private?

Yes. Files are processed on EU servers, never shared, and deleted automatically after processing. No signup is required to merge PDFs.

How do I combine multiple PDF files into one?

Upload all the files, drag them into the order you want and click Merge. You download one combined PDF document with every page, no watermark and no signup.

Can I merge two PDF files on my phone?

Yes, the tool runs in the browser and works on mobile and tablet too. Upload the files from your phone, merge, and download the result, no app to install.

Can I interleave pages from two documents, e.g. front and back scans?

Yes. Besides normal merging, the tool can alternate the pages of two documents (collate) — handy when fronts and backs were scanned separately.

Merge PDF Files

Merge multiple PDF files into one online for free. Combine PDF documents quickly and securely. Unlimited files.

Got several PDF files that belong in one document? With PDF.dk you merge your PDF files for free right in the browser — drag the files into the order you want and combine them into a single document in seconds. Files are processed on Nordic servers and deleted automatically.

Frequently Asked Questions

How many PDF files can I merge?: You can merge unlimited PDF files into one combined file.
Can I change the order of files?: Yes, you can easily rearrange files by dragging and dropping them in the desired order.
Is the quality preserved?: Yes, all files are merged without quality loss. Original formatting and resolution are preserved.
Is it safe to merge PDFs online — do my files stay private?: Yes. Files are processed on EU servers, never shared, and deleted automatically after processing. No signup is required to merge PDFs.
How do I combine multiple PDF files into one?: Upload all the files, drag them into the order you want and click Merge. You download one combined PDF document with every page, no watermark and no signup.
Can I merge two PDF files on my phone?: Yes, the tool runs in the browser and works on mobile and tablet too. Upload the files from your phone, merge, and download the result, no app to install.
Can I interleave pages from two documents, e.g. front and back scans?: Yes. Besides normal merging, the tool can alternate the pages of two documents (collate) — handy when fronts and backs were scanned separately.

How to

Upload the PDF files you want to merge by dragging them to the upload area
Arrange the files in the desired order by dragging and dropping
Click "Merge PDF" to combine the files
Download your new combined PDF file