Images to PDF

The single-format pages each optimise for one kind of file. This one exists for the realistic case: a folder holding two phone photos, a screenshot, a logo someone emailed as a WebP and a bitmap out of an old scanner, all of which need to become one document. Mixed batches are handled per file rather than by lowest common denominator. A JPEG is embedded with its compressed data untouched. A PNG is decoded and re-embedded losslessly. A WebP or BMP goes through the browser’s decoder because PDF cannot reference those encodings, and the resulting pixels are compressed into the page. Each file therefore takes the best route available to it, and one awkward format does not degrade the rest. The harder problem in a mixed batch is geometry, because the dimensions will be all over the place — a 4000-pixel-wide photo next to a 300-pixel logo. Auto page size honours each image exactly; a fixed size plus a fit mode is what makes the stack look like a deliberate document.