Combine images into a PDF without uploading them

This is how photographs of paperwork become a document: receipts for an expense claim, a passport page and a utility bill for a landlord, signed sheets for an employer, a set of medical letters for an insurer. The recipient always wants one file, and the source material is always a camera roll.

The camera roll is the risk. A phone photo records the coordinates where it was taken, the exact time, and which device took it, and none of that is visible when you look at the picture. Run the images through the EXIF viewer and strip what you do not want to send before you build the document, because once they are pages you are dealing with a different file entirely.

Crop before you combine, too. Photographs of documents routinely include the rest of the desk: the next document in the pile, a laptop screen, a name on an envelope, someone's hand. Screenshots include notification banners and whatever tabs were open. Shoot each page in the same orientation, crop each one to the page, then set the order and build.

Confirm nothing left by opening the network panel before you add the first image, or by disconnecting the network and building the document offline. It is the same check for every page here, and it is genuinely worth doing the first time with a file that would embarrass you, because after that you know.