How to Convert JPG to PDF: Combine Photos into One PDF (Free)
Turn photos of documents, receipts or scans into a single clean PDF: page order, A4 or Letter size, orientation and file size — free and without uploading your images.
Why Convert Your Photos to PDF?
You photographed a document with your phone — a signed contract, an ID card, receipts, homework — and now you need to send it. Sending 6 separate JPG files is messy: the order gets mixed up, some apps compress the images, and many websites only accept a single PDF file.
Converting your images to PDF gives you:
- one file instead of a dozen,
- pages in the order you choose,
- a standard page size (A4 or Letter) that prints correctly,
- a format accepted by every administration, employer and school.
Convert JPG to PDF in 4 Steps
The Image to PDF converter builds the PDF directly in your browser with pdf-lib: your photos, often personal, are never uploaded.
- Add your images — JPG, PNG, WebP, GIF, BMP or TIFF, and iPhone HEIC photos too.
- Reorder them by dragging them in the list. The PDF pages follow this order.
- Choose the page size: A4, US Letter, or Original (each page matches its image).
- Choose the orientation: Portrait, Landscape, or Auto (based on each image) — then download.
No loss of quality for JPGs
JPG images are embedded in the PDF as they are, without being re-compressed: the quality is identical to your original photos. Photos taken sideways are automatically put upright using their EXIF orientation.
A4, Letter or Original: Which Page Size?
| Page size | When to use it |
|---|---|
| A4 (210 × 297 mm) | Documents for Europe and most of the world; anything that might be printed |
| US Letter (8.5 × 11 in) | Documents for the United States and Canada |
| Original | Portfolios, photo albums, screenshots — no white margins |
For scanned documents (contracts, forms), choose A4 or Letter: the recipient can print the PDF without resizing it.
Tips for Clean Document Scans with Your Phone
- Lay the document flat on a dark, contrasting surface.
- Use daylight, without flash, to avoid reflections.
- Hold the phone parallel to the page to avoid the "trapezoid" effect.
- Crop each photo to the edges of the page with the crop tool before converting.
- Check readability: zoom in on the small print before sending.
Is Your PDF Too Heavy?
Phone photos are large — 3 to 5 MB each. A 10-page PDF can therefore weigh 40 MB, too much for email or for an online form.
Two solutions:
- Before: reduce the images with the image compressor or the resizer (1600–2000 px wide is plenty for a readable document).
- After: run the PDF through the PDF compressor, which resizes and re-encodes the images while keeping text and links.
Other Useful Operations
- Add pages to an existing PDF: create the PDF from your images, then merge it with the other document.
- The reverse operation: convert a PDF to JPG to post a page on social media or insert it into a presentation.
- Sign the PDF: open it in the PDF editor and add your signature.
Conclusion
Converting JPG to PDF is the cleanest way to send several photos of documents: one file, in the right order, at a standard page size, without loss of quality. With a browser-based tool, it takes a few seconds and your images never leave your device.
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