Convert images to PDF
Combine multiple photos into a single PDF document. Free, private, browser-based.
- Runs in
- Your browser, on your device
- Upload
- None — nothing is uploaded
- Signup
- Not needed
- Watermark
- None added by MiniPx
- Limits
- No quota. Batch tools take 5 files at a time on Free; Pro lifts the cap
- Output
- A file saved straight from your browser
Image to PDF — Free, Fast & Private
Drop images into the tool above and each becomes one page of a single PDF, in the order you added them. It accepts JPG, PNG and WebP, and HEIC iPhone photos too; the HEIC to PDF page covers that in detail. The PDF is built by jsPDF in your browser, so IDs, receipts and medical records are not uploaded.
Choosing a page size
Fit to image is the default and gives each page the shape and size of its own image, which suits photos. A4 and US Letter give every page exactly that page box, turned to landscape when the image is, with the image scaled to fit and centred. Nothing is cropped, so an image of a different shape leaves a white margin. Choose one when a portal validates A4, a print shop prices by sheet, or the document must print at actual size.
Order, limits and what is embedded
Pages follow your upload order. Each image can be up to 200 MB, with no daily quota or monthly credit, and one that is too large to decode safely in a browser tab is skipped with a note instead of failing the batch. A multi-frame file such as an animated GIF contributes only its first frame, and a JPG with a rotation tag is redrawn so it comes out upright. To keep a scan under a size limit, see JPG to PDF under 100KB and under 500KB, where the size target is set for you.
Round trip with PDF to image
Coming the other way, the PDF to Image tool offers Build a PDF from these pages on its results. Use that rather than downloading the pages and adding them back here, because it keeps the original page size: a PNG or JPG on disk carries no page box, so once pages are downloaded nothing in them says what size sheet they came from. For JPEG pages use PDF to JPG.
Image to PDF on real photos and scans, measured
| File | Before | PDF page | Image inside | PDF size | Change |
|---|---|---|---|---|---|
| 12 MP phone photo | JPG · 4032 × 3024 px · 3.73 MB | 1897 × 1422 mm, fits the image | JPEG · 4032 × 3024 px | 3.73 MB | 0% larger |
| Screenshot (PNG) | PNG · 1280 × 800 px · 88.1 KB | 602 × 376 mm, fits the image | lossless (Flate) · 1280 × 800 px | 92.3 KB | 5% larger |
| App icon on transparency (PNG) | PNG · 2048 × 2048 px · 162.5 KB | 963 × 963 mm, fits the image | lossless (Flate) · 2048 × 2048 px + transparency mask | 203.9 KB | 25% larger |
Measured 2026-10-07 in Chromium 145.0.7632.6 by building a one-page PDF from each file with this page’s tool at its default settings and reading the PDF it downloaded: its page size and how the image inside is stored, at what pixel size. The photos and scans are CC0 or public-domain files from Wikimedia Commons; the screenshot is MiniPx's own; the app icon is drawn by the measuring script, with a soft shadow so partial transparency is tested. Sizes are shown as the tool shows them (1 KB = 1,024 bytes).
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