Phone cameras and basic scanning apps usually save each page as a separate JPG or PNG, which is fine until you need to submit or send them somewhere that expects one document — most upload portals, application forms, and email attachments are built around a single PDF, not a folder full of loose images.

Combining images into a PDF

JPG to PDF turns any number of images into a single multi-page PDF:

  1. Add one or more JPG or PNG images.
  2. Click convert.
  3. Download a single PDF with each image as its own page.

Images become pages in the order you added them — there’s no drag-and-drop reordering once they’re in the list. If one’s out of place, remove it with the ✕ and add it back where you want it. See below for a way to get the order right before you even open the tool.

Getting the page order right without drag-and-drop

A lot of similar tools let you drag thumbnails around after uploading. This one doesn’t — pages come out in the order you added the files, full stop. Two ways to make that painless instead of fighting it after the fact:

  • Rename the files before you add them. Something like page-01.jpg, page-02.jpg, page-03.jpg sorts correctly in any file browser, and if you then select all of them at once in the picker, most browsers hand them to the tool in that same sorted order.
  • Add them one at a time, in sequence, if you only have a handful. Slower, but there’s no ambiguity about what order they’ll land in.

Either beats adding twelve scanned pages, discovering page 7 is where page 3 should be, and removing and re-adding files to fix it.

There’s also no cap on how many images you can add in one go — some converters stop you at 20 and make you combine batches afterward. Since this one runs on your device instead of a server, the only real limit is how much your browser’s memory can hold, which for a stack of JPGs is usually a lot more than 20.

Sideways or upside-down photos

If you’re converting photos straight off a phone, you might get a page or two that comes out sideways even though the photo looked upright in your gallery app. That’s an EXIF orientation issue, not a bug specific to this tool: many phone cameras save a photo’s pixels in landscape and just add a rotation flag saying “display this as portrait.” Viewers and gallery apps read that flag and rotate the preview for you, but this converter embeds the image data as-is and doesn’t read or apply that flag — so a photo that looks correctly oriented on your phone can land in the PDF the way the camera actually wrote the pixels.

If you hit this, rotate the photo in your phone’s gallery app first (which typically re-saves the pixels themselves, not just the flag) and re-add it. It’s a one-photo fix, not something you’ll run into on every image.

Mixing formats and page sizes

You can mix JPG and PNG files in the same batch — each becomes its own page regardless of format. Each page comes out at standard A4 size, with your photo scaled down to fit and centered on it — so the image itself keeps its original proportions (it’s never stretched to fill the page), but a photo whose aspect ratio doesn’t match A4 will have white space on two sides.

Quality is preserved

Images are embedded at their original quality with no extra compression applied — if you need a smaller resulting file (say, for an email attachment size limit), run the output through Compress PDF afterward rather than expecting this step to shrink it.

Nothing gets uploaded

The images turn into a PDF inside your browser tab — nothing is sent to a server to be processed and nothing sits on someone else’s storage waiting to be cleaned up later. That’s worth knowing specifically because of what tends to get combined this way: scanned ID cards, signed forms, receipts with account numbers on them. A lot of online converters do the same conversion by uploading your files, processing them remotely, and deleting them after some retention window (an hour, a few hours); here there’s no upload step for anything to sit in during that window, because there isn’t a window.

The reverse: getting images back out

If you’re starting from a PDF and need the images back out as separate files instead, Extract Images does the opposite conversion — pulling embedded photos out of an existing PDF.