Are my files uploaded to a server?+
No. The merge happens in your browser, on your device. Your PDFs are not sent, copied or kept by the site.
How many PDFs can I merge?+
As many as you like, from two upwards. There is no limit on number or size: the only limit is your device's memory, since every file is loaded into it during the merge. Above 100 MB in total, a warning says that the browser may slow down.
How do I change the order of the files?+
Drag a row of the list to its new place, or use its arrows to move it up or down one step. The arrows work from the keyboard as well as on a touch screen. The merged PDF follows the order of the list, top to bottom.
Can I merge a password-protected PDF?+
No. The content of a protected PDF, whether by an opening password or by restrictions (printing, copying), is encrypted: it cannot be copied into another file. The tool flags it as soon as you drop it. Remove the protection with the software that set it, then drop the file again.
Does the text stay selectable?+
Yes. Pages are copied as they are, never through an image: text stays text, which you can select, copy and search. Images keep their original quality, and the merged PDF weighs roughly the sum of the files you started with.
What happens to bookmarks and links?+
The bookmarks of each file are carried over, in the order of the list. Links to websites stay clickable, and links within a file still lead to the right page.
What about an electronically signed PDF?+
It can be merged, but the resulting PDF no longer carries the signature: it only holds for the original file, byte for byte. A warning reminds you. Keep the signed original if the signature matters.
Is the merged PDF smaller?+
No: merging joins, it does not compress. To make the resulting PDF lighter, run it through the Hexiven Compress compressor afterwards, which reduces the weight of images without touching the text.