How to Convert JPG to PDF (and Back Again)

Photos of receipts for an expense report, scanned pages from a phone camera app, or a set of reference images for a client — all of these start life as JPG or PNG files and often need to end up as one PDF, in a specific order, rather than a folder of loose images attached to an email.

Images to PDF

JPG to PDF combines one or more images into a single multi-page document. The key thing to get right is page order — if you're photographing multiple receipts or pages, name your files so they sort correctly, or reorder them in the tool before generating the PDF. Images are embedded at their original resolution, so there's no quality loss compared to the source photos.

PDF to images

Going the other way — pulling pages out of a PDF as images — comes up when you need a page as a thumbnail, a slide, or a graphic for a social post, rather than as a document. PDF to JPG renders each page at a resolution you control, so you get output sized correctly for print or screen instead of a cropped screenshot.

One thing to watch for

If you're combining a large number of high-resolution photos into a PDF, the result can get big fast — run it through Compress PDF afterward if you need to email it or upload it somewhere with a size limit.