Photo apps sort by capture time, which is rarely the order a form or an expense claim needs. Drag the thumbnails into place, remove the shots you do not want, and each remaining image becomes one page in exactly that sequence. Changing the order does not regenerate the file until you ask for it.
A4 and Letter give every page the same shape, which is what printers and upload forms expect; the image is scaled to fit and centred. Original size makes each page match its own image instead, so nothing is cropped and no white band appears, but pages can differ in shape. Orientation and margin only apply to A4 and Letter.
Images are read, rotated and encoded inside this page, so nothing is uploaded and there is no account or page quota. Because the whole document is built in memory, the tool accepts up to 50 images of 20 MB each, and images longer than 4000 pixels on their longest edge are scaled down first, which is still well above print resolution for A4.
Common questions and answers about this topic.
Drag any thumbnail to a new position. On a phone, press and hold a thumbnail for a moment before dragging so that scrolling still works normally. You can also move a thumbnail with the keyboard by focusing it and using the arrow keys. The number badge on each thumbnail always shows its current page number, and the PDF follows that order exactly.
A4 is 210 by 297 mm and Letter is 8.5 by 11 inches. Both give every page the same shape, and each image is scaled to fit inside it and centred, so a wide photo on a portrait page leaves white bands above and below. Original size instead makes every page match its own image, treating the pixels as 96 DPI, so nothing is scaled to fit and no white bands appear, but pages can end up different shapes in the same file.
Each image is decoded and re-encoded once while the PDF is built. Photos are written as JPEG at 92 percent quality and PNG files stay PNG, which keeps screenshots and transparent areas sharp. Images longer than 4000 pixels on their longest edge are scaled down to that limit first. At A4 size, 4000 pixels is still above 300 DPI, so printed pages look the same as the originals.
A phone usually stores the pixels sideways and adds an EXIF orientation tag telling viewers to rotate them. Tools that copy the original file straight into a PDF ignore that tag, which is why a stack of receipts can end up lying on its side. This tool asks the browser to apply the orientation while decoding, so what you saw in your gallery is what lands on the page.
No. Each page holds a picture, so the words in it are pixels rather than text, and nothing here reads or recognises them. If you need selectable text, run the images through Image OCR first, or extract text from an existing PDF with PDF To Text. This tool deliberately does no recognition, because a wrong guess in a receipt or an ID document is worse than no text at all.
It turns images into pages and nothing else. It does not compress the result to a target file size, rotate or crop individual images, add page numbers or headers, password-protect the output, or accept HEIC and RAW files that browsers cannot decode. For a smaller file, compress the images first with Image Compressor. To join existing PDF files, use PDF Merger instead.