JPG/PNG to PDF

How to convert images to PDF

1. Drop your images on the drop zone, or click it to choose them. JPG and PNG work best; WebP, GIF, BMP and AVIF are accepted too when your browser can open them.
2. Set the order of the pages. Drag an image by its handle (⠿), or use the Move up and Move down buttons. Remove (✕) takes an image out of the list. Each image becomes one page.
3. Choose the Page size: A4 (210 × 297 mm), US Letter (8.5 × 11 in), US Legal (8.5 × 14 in), A3, A5, or Same as the image.
4. Choose the Orientation (Automatic, Portrait or Landscape) and the Margin (No margin, Small (5 mm), Medium (10 mm) or Large (20 mm)).
5. Click Convert to PDF, then Download. With a single image the PDF takes the image’s name; with several, it is called images.pdf.

How images are placed on the page

With a fixed page size, each image is scaled to fit inside the margins while keeping its proportions, then centered. Nothing is cropped or stretched: a photo whose shape differs from the page simply leaves white space on two sides. Small images are enlarged to fill the available space, so for sharp prints use images with enough pixels: about 2480 × 3508 pixels fills an A4 page at 300 DPI, and 1240 × 1754 at 150 DPI.

Automatic orientation turns the page to landscape for images wider than they are tall, and keeps portrait otherwise, so a mix of photos and scanned documents each get the best fit. Portrait and Landscape force the same orientation on every page.

Same as the image makes every page exactly the size of its image, counting 96 pixels per inch (the usual screen density), plus the margin if you chose one. A 1920 × 1080 screenshot, for example, gives a page of 20 × 11.25 inches. The orientation setting doesn’t apply in this mode.

Image quality

JPG and PNG files are embedded as they are, without recompression, so the PDF keeps the exact quality of your pictures and its size stays close to the total size of the images. Phone photos that are stored sideways with an orientation tag (EXIF) are turned upright on the page, still without re-encoding.

Other formats (WebP, GIF, BMP, AVIF) can’t be embedded directly in a PDF, so the browser converts them first: GIF becomes PNG, the others become high-quality JPG (92 %) on a white background, so transparent areas turn white. PNG transparency is kept.

HEIC photos from iPhones only open in browsers that support them, such as Safari. Elsewhere, convert them to JPG first.

Privacy

The images are read and assembled into a PDF by your browser. They are never uploaded, which matters for scans of identity documents, receipts or personal photos.