How to convert images to PDF
- Drop your images on the page, click Choose files, or paste with Ctrl+V.
- Drag them into order and pick a page size and margin.
- Click Convert to PDF, then Download.
How the conversion works
JPG and PNG files are placed into the PDF exactly as they are: the original bytes go in, so there is no second round of compression and no loss. Other formats such as WebP, GIF or HEIC (when your browser can open it) are first drawn onto a canvas and saved as PNG or high-quality JPG.
Phone photos often store their rotation in a hidden EXIF tag. The tool reads that tag, so a portrait shot doesn’t end up lying on its side in the PDF.
What we measured
We converted 9 photos (JPG, 1,133 KB in total) into an A4 PDF in Chrome on a 4-core test computer. It took 0.03 seconds and the PDF came out at 1,137 KB, just a little more than the photos themselves, because the JPGs were embedded without re-encoding.
If your photos are large (a modern phone takes 3–8 MB per shot), the PDF will be large too. Run them through Compress Image first: 1920 px on the long side is plenty for a document that will be read on screen.
When it’s useful
Sending photos of an ID card, a signed form or receipts to a bank, school or HR department that only accepts PDF. Turning whiteboard photos from a meeting into one handout. Bundling a child’s drawings or a recipe notebook into a file you can print.
Choose A4 or Letter if the PDF will be printed: each image is scaled to fit inside the margins, centred, without stretching. Same as image gives one page per image at its own proportions, which looks best on screen.
Limits
- Page order follows the list; you can change it before converting, or later with Organize PDF Pages.
- Text in photos isn’t recognised (no OCR), so the PDF isn’t searchable.
- Animated GIFs use only the first frame.
- To add the images to an existing PDF, convert them here and then combine both files with Merge PDF.
Frequently asked questions
Are my photos uploaded?
No. The PDF is built in your browser with pdf-lib. Your photos never leave your device.
Does converting reduce photo quality?
Not for JPG and PNG, which are embedded unchanged. Other formats are converted at high quality.
Can I make one PDF from many photos?
Yes. Add as many as you like; each becomes one page, in the order shown in the list.
Which page size should I choose?
A4 for most of the world, Letter for the US and Canada. Pick Same as image if the PDF will only be viewed on screen.