How to combine PDF files without uploading them

Step by step

1. Open Merge PDF. Go to the Merge PDF page on PlumPDF. No account and nothing to install.
2. Add your PDFs. Drop at least two PDFs on the box, or click to browse. Each one shows its page count.
3. Put them in order. Drag files up and down, or use the arrow buttons. Remove any you do not want.
4. Merge and download. Press Merge. Your combined file downloads as merged.pdf.

Why not upload files to combine them?

The files people combine are often a set that belongs together: an application with its supporting papers, invoices for an accountant, scans of a contract and its annexes. Together they can say a lot about you. Joining them on your own device means the whole bundle stays with you, and you do not wait for it to travel to a server and back.

What is kept, and what is not?

Pages are copied directly, so text stays text, images keep their original data, and page sizes and rotation are preserved. Pages from different files can have different sizes in the same result.

Things that belong to a whole document do not travel with the pages. Bookmarks, the title and other metadata, tagged structure for screen readers, and interactive form fields from the originals are dropped. If forms matter, flatten or finish them before merging.

How do I get a tidy result?

A little preparation saves fixing things afterwards:

• Check the order in the list before you press Merge, since the first file's pages come first.
• To use only some pages of a file, pull them out first with Extract PDF pages.
• To add page numbers across the whole document, merge first, then number the result.
• Keep the originals until you have looked through the merged file.

What are the limits?

You can merge 2 to 50 files at a time, up to 100 MB each. Everything is held in your device's memory, so very large totals can be slow on a phone. For a bigger job, merge in two rounds and then merge the two results.

Questions