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JPG to PDF Converter
Turn one or many JPG images into a PDF document. Choose A4, US Letter or fit-to-image pages, set margins, and download — all inside your browser.
Why convert JPG to PDF?
Combine or separate
By default every image you drop becomes one page of a single PDF, in the order you added them. Untick 'Combine' to get one PDF per image instead.
Print-ready sizing
Pick A4 or Letter with a margin for documents you'll print, or 'Fit to image' for a PDF that's exactly the image's size — perfect for scans and receipts.
How to convert JPG to PDF
- Set the page — A4, Letter or fit-to-image; auto orientation picks portrait or landscape per image.
- Upload — drop your JPG file(s) in the order you want them.
- Download — one PDF, ready to send or print.
What we measured
We combined five photographs (715 KB of JPEG files in total) into one PDF at three quality settings.
| Setting | Result |
|---|---|
| Quality 90 (default) | 512 KB, 72% of the sources |
| Quality 70 | 231 KB, 32% of the sources |
| Quality 50 | 160 KB, 22% of the sources |
| A4 page vs fit to image | 12 bytes apart; page size does not change file size |
Lower the quality, not the page size, when a PDF has to fit an upload limit. Full method and numbers: how big will your image PDF be.
Frequently asked questions
Does it keep the image quality?
Images are embedded as JPEG at the quality you choose (90% by default — visually lossless for photos). Raise it to 100% for maximum fidelity or lower it for a smaller PDF.
Can I reorder pages?
Pages follow the order the files are added. Drop them in the order you want, or use the file picker where you can select in sequence.
Is there a page limit?
No hard limit — it's only bounded by your device's memory. Hundreds of typical photos are fine.
Is this tool free?
Yes — every tool on ConvertPicto is completely free, with no account, no watermark and no file limits. The site is supported by ads.
Are my images uploaded to a server?
No. ConvertPicto runs entirely inside your browser using the Canvas API. Your files are read locally, processed on your device and never sent anywhere — we don't even have a server that could receive them.
Does it work on my phone?
Yes. The site is fully responsive and works in any modern mobile browser (Chrome, Safari, Firefox, Edge). Processing large images is naturally slower on a phone than on a laptop.