JPG to PDF Converter

The JPG to PDF Converter places one or more JPG photos into a single PDF, one photo per page. It is aimed at the everyday jobs phones create: a handwritten assignment photographed page by page, both sides of an ID card, a stack of bills for an expense claim. PNG images are accepted too and can be mixed with JPGs in the same file.

Your JPGs are placed in the PDF untouched

PDF can store JPEG data natively, so the converter copies each photo into the file byte for byte without decoding and re-saving it. Two useful consequences follow:

• No extra quality loss. JPEG is a lossy format, and every re-save normally softens it a little. Here the photo is not re-encoded at all, so the page looks exactly like the original photo.
• Predictable size. The PDF is about the total size of your JPGs plus a small overhead. To make the PDF smaller, make the JPGs smaller first; if a portal caps the PDF in KB, reduce each photo to a set KB size and leave a little room for the overhead.

Page size follows the photo

Each page is given the photo's pixel dimensions in points. A 12-megapixel phone photo of 4000 × 3000 pixels becomes a page of roughly 141 × 106 cm. That sounds odd, but viewers simply zoom out to fit, and a printer set to Fit to page scales it onto A4. A portrait photo produces a portrait page and a landscape photo a landscape page, so one PDF can contain both.

Why a photo can come out sideways

Many phone cameras save the image in the sensor's orientation and add an orientation tag (part of the EXIF data) that tells apps to turn it upright when showing it. Your gallery respects that tag; this converter embeds the raw image data and does not, so an affected photo can appear rotated in the PDF. Two fixes:

• Rotate the individual photo with the image rotator and save it, which stores the pixels upright, then convert again.
• If every page came out turned the same way, run the finished PDF through Rotate PDF, which turns all pages 90° clockwise per pass.

Step by step

1. Drop your JPG files on the upload area or click it to choose them. Add more at any time; new files join the end of the list.
2. Check the order in the list. Use Remove to take a file out, and add it again if it needs to move to the end.
3. Press Convert to PDF, then Download result.

Getting readable pages from phone photos

• Shoot in good light without flash, which causes glare on glossy paper.
• Hold the phone parallel to the page so lines of text stay straight.
• Crop out the background before converting; a tight crop also makes the file smaller.

Everything runs locally in the browser, which matters when the photos show identity documents.