What Image to PDF does
This tool turns one or more JPG, PNG or WebP images into a single PDF, one image per page, in the order you select them. Each page is sized to the image itself, so a 3,000 × 4,000 pixel photo becomes a page with that aspect ratio and nothing is cropped or stretched. The images are embedded at their original resolution — a JPG is placed into the PDF without re-encoding, so there is no additional quality loss. Everything runs in your browser; the photos are never uploaded.
How the images are handled
| Input format | How it is embedded | Quality impact |
|---|---|---|
| JPG / JPEG | Original bytes embedded directly | None — identical pixels |
| PNG | Embedded losslessly, transparency preserved | None |
| WebP | Decoded and re-encoded | Minimal; converted to a PDF-compatible format |
| HEIC (iPhone) | Not supported directly | Convert with HEIC to JPG first |
Because JPGs are embedded as-is, the PDF is roughly the size of the input images added together, plus a few kilobytes of structure. If you need a smaller file, resize or compress the images before converting, or run the Compress PDF tool afterwards.
Getting the page order right
Pages follow the order in which the files are listed in the picker, which is normally alphabetical by filename. Phone cameras name files sequentially (IMG_0412.jpg, IMG_0413.jpg) so photos taken in order come out in order. If you have renamed files or are combining images from different sources, prefix them with numbers before selecting. The Reorder Pages tool can fix the order afterwards if needed.
Common uses
- Scanning with a phone — photograph each page of a document, then bundle the photos into one PDF to email or upload.
- Receipts and expenses — a month of receipt photos becomes a single file for a claim.
- Portfolios and lookbooks — designers and photographers send a PDF that opens anywhere rather than a folder of images.
- Forms — many portals accept PDF but not images; convert a photographed ID or signed form.
- Screenshots — combine a sequence of screenshots into a document with page numbers.
Tips for better results
- Photograph documents in good, even light and from directly above; skewed pages cannot be corrected here.
- Crop before converting. Use the Image Cropper to trim table edges and backgrounds so the page is just the document.
- Keep orientation consistent. Rotate landscape photos to portrait (or vice versa) beforehand so every page reads the same way.
- Mind the size. Ten 12-megapixel photos make a 30–40 MB PDF. Resize to around 1,600 px on the long edge for a document that is still crisp on screen but a tenth of the size.
- Mixed sizes are fine. Each page takes the size of its image; viewers and printers handle the variation.
Image to PDF vs printing to PDF
On most systems you can open an image and “print” it to a PDF. That route scales the image to fit a fixed paper size, adds margins, and often re-compresses it. This tool instead makes the page exactly the image's size with no margins and no re-encoding, which is what you want for scans and portfolios. If you specifically need A4 or Letter pages with margins, print to PDF from your image viewer, or run the Resize Pages tool on the output.