You've photographed a few receipts for an expense report, or snapped both sides of your ID for a form, and now you've got a folder of separate JPGs when what you actually need is one clean PDF. It's a small problem, but an annoyingly common one — and most phone gallery apps don't have a built-in way to do it properly.
Here's how to combine multiple images into a single PDF, plus a few tips that make the difference between a scan that looks professional and one that looks like, well, a photo of a piece of paper.
When you'd actually need this
- ID and document scans — front and back of an ID, passport, or certificate as one file
- Receipts and bills — bundling several photographed receipts into one PDF for an expense claim
- Handwritten notes — multiple pages of notes or a signed form, photographed and combined
- Forms and applications — many online applications ask for "one PDF," not five separate images
Step-by-step: converting images to PDF
1
Open the Image to PDF toolWorks directly in your browser — nothing to install.
2
Upload your imagesJPG, PNG, or WEBP all work. Select multiple files at once if you have several.
3
Set the orderDrag each image into the order you want the pages to appear in the final PDF.
4
Convert and downloadYou'll get a single PDF with each image as its own page.
Getting a cleaner scan from your phone
- Use even lighting — avoid a single overhead light that throws a shadow across the page. Natural daylight near a window usually works best.
- Shoot straight on, not at an angle — this avoids the keystone distortion that makes text look stretched on one side.
- Crop tightly — most phone cameras leave a lot of background table or floor in the frame. Cropping to just the document makes the PDF look intentional, not like a snapshot.
- JPG over PNG for photos — JPG is usually fine for photographed documents and keeps file sizes smaller. PNG is better only if the original image has sharp text or fine line art, like a scanned diagram.
💡 Quick tip
If the resulting PDF feels too large to attach to an email, run it through a compress tool afterward — image-based PDFs are usually the ones that benefit most from compression.
Common questions
Q.Can I mix different image formats in one PDF?
Yes — you can combine JPG, PNG, and WEBP files in the same batch. Each becomes its own page in the order you set.
Q.Will the PDF page size match my photo's size?
Each image is placed to fit a standard page, keeping its original aspect ratio so nothing gets stretched or distorted.
Q.Can I extract text from the images afterward, like with OCR?
Not currently — this tool creates a PDF made of images, not searchable text. If you need to extract or search the text inside scanned pages, you'll need a dedicated OCR tool.
Q.Is it safe to convert photos of sensitive documents, like an ID?
Yes — PaperStack converts your images entirely inside your browser. They're never uploaded to a server, so nobody but you ever sees them.