How to Turn a Batch of Photos Into a Single PDF

Turning a stack of individual photos into a single PDF comes up constantly — combining receipt photos for an expense report, assembling scanned pages of a signed document, or packaging a set of product photos into a shareable catalog. It's a simple conversion, but getting the page order right is where most people trip up.

Sort before you convert, not after

Rename or reorder your source photos into the exact sequence you want them to appear in the final PDF before running the conversion — most tools convert files in the order they're selected or in file-name order, so a batch of unsorted camera photos can come out in a jumbled sequence unless you sort first.

One page per photo, at full quality

Each photo typically becomes one full page in the resulting PDF, retaining its original orientation and resolution unless you resize beforehand. If a photo is sideways, rotate it before combining — fixing orientation after the PDF is assembled usually means extracting that one page, rotating it separately, and reinserting it, which is more steps than fixing it up front.

Mixed orientations in one document

If some source photos are portrait and others are landscape, decide whether you want the resulting PDF pages to keep their original ratio (mixed page sizes) or standardize all pages to one consistent size — for a professional-looking document like a catalog, standardizing looks far more intentional than a document that changes page shape every few pages.

Reordering after the fact

If you've already generated the PDF and realize a couple of pages are out of order, you don't need to start over — most PDF tools that let you convert images to PDF also let you reorder, delete, or rotate individual pages of an existing PDF afterward, which is faster than reconverting everything from scratch.