- Does this upload my files to a server?
- No. Merging happens entirely in JavaScript, right inside your browser. Your files never leave your device, so there's nothing on our end to store or delete.
- Is there a limit on how many files I can merge?
- There's no hard cap on the number of files. The real limit is your browser's memory: once the combined size climbs past roughly 100MB a desktop can slow down, and phones hit that ceiling much sooner.
- Does merging reduce file quality?
- No. Pages are copied into the new file exactly as they are, with no re-compression, so text stays selectable and images keep their original resolution.
- What about files that have a password?
- The tool can't open an encrypted file and will show a clear error instead. Remove the password first — for example by opening the file and printing it to a new PDF.
- Do I need to install anything or create an account?
- No. All you need is a modern browser. No install, no account, no limit on how many times you use it.