In short
This tool gathers photos or screenshots into a single PDF, one image per page: photographed receipts and supporting documents, the pages of a document taken with a phone, screenshots to archive. It accepts JPG, PNG and WebP images, which you reorder by hand or sort by name. The page is A4, US Letter or the size of each image, in portrait, landscape or oriented automatically, with or without margins. PNGs and upright JPGs are embedded as they are, without recompression; other images are re-encoded at high quality, and a small image is not enlarged. The text in the images is not selectable: afterwards, run the PDF through “OCR: make a PDF searchable”. The PDF is created in your browser.