Merge PDF

Most upload forms accept exactly one file. A signed contract comes back as three separate scans, twelve months of bank statements arrive as twelve downloads, and the portal that needs them has a single Choose file button. Merging is also the quickest way to turn a cover letter, a CV and a certificate into the one PDF a recruiter asked for.

Add the files in any order and rearrange them before you merge, because the result follows the order shown on screen, not the alphabetical order your file manager used. It helps to check the last page of each document first, since scanners often append a blank sheet that then sits in the middle of the merged file. Pages are copied across exactly as they are, so text stays selectable and images keep their original resolution.

A PDF that asks for a password when you open it has to be unlocked first, and a filled interactive form should be flattened before you merge it, because merging copies the page content only and the values typed into form fields, along with any digital signature, do not come across. Everything happens inside this browser tab, so nothing is uploaded and the only real limit is how much memory your device can give a single page. If the merged file turns out larger than the recipient allows, pdf-compress is the next step.