Merge PDF Online

Merge PDF files in the order you need

Drop in two files or twenty. Each one appears in a numbered list with arrows beside it, and that list is the finished document: move a scan of page three above the cover letter and it comes out that way. The order matters more often than people expect, because most merges are a bundle for somebody else to read, a tender submission, a visa file, an invoice pack with its receipts. Pages inside a single PDF keep their own order, so if one of your files is back to front, reorder its pages first with split PDF and merge the parts. A file dropped in by mistake comes out of the list with the cross next to it.

What survives the merge, and what does not

Pages are copied into the new document as they are, with nothing re-rendered. Text stays selectable and searchable, embedded fonts stay embedded, images keep their original compression, and a page that was A4 stays A4 even when the file next to it is US Letter. So the merged PDF weighs roughly the sum of its parts, worth knowing before you attach it to an email. The outline, the bookmark tree a reader shows in its side panel, does not carry over and comes out empty. Page numbers printed on the original pages stay as they were too, which is why a merged bundle often shows three page ones. If the result is too heavy for the form you are sending it to, compress PDF is the next step.

Merging without handing over the documents

Most free merge tools upload your files, combine them on a server and delete them on a schedule you have to take on trust. Here the PDFs are read and rewritten by your own browser and never sent anywhere, which matters when the bundle is a passport scan, a payslip and a signed agreement. You won't hit a daily quota or wait in a queue either, and a merge runs as fast as your own laptop can manage.