How to convert images to PDF
- Select Choose files or drop your JPG, PNG, WebP or AVIF images on the box.
- Put them in order with the Up and Down buttons. The first image becomes page 1.
- Choose a page size: A4, US Letter, or Fit to image, which makes every page exactly as large as its picture. Pick portrait, landscape or automatic, and a margin.
- Select Create PDF and then Download.
What you get
Each image becomes one page, centered and scaled to fit inside the margins without stretching. With Automatic orientation, wide images get landscape pages and tall ones get portrait pages. JPG and PNG images are embedded as they are, so quality is not reduced and the PDF is about as large as the images. Other formats are converted to high quality JPG first.
Photos that rely on an EXIF rotation tag are redrawn upright so they do not appear sideways. The PDF is made with the pdf-lib library, running in your browser, and works in every PDF viewer.
Good uses
Scanning documents with your phone, collecting receipts for an expense report, merging photos of a signed form, building a simple portfolio, or sending several pictures as one attachment. Most government and school portals prefer a single PDF.
Tips
- Fix upside-down scans first with rotate image.
- Large PDFs are hard to email. Shrink the pictures first with the image compressor, then build the PDF.
- Convert iPhone photos with HEIC to JPG before adding them.
- The number of pages is shown when the PDF is ready, so you can check nothing is missing.
Page size choices
A4 is 210 × 297 millimeters and is the standard in most of the world, while US Letter is 8.5 × 11 inches. Both centre the picture on a white page and keep its shape. Fit to image is best for screenshots or when you want no white borders, because each page takes the size of its picture. A margin of 10 millimeters is a safe default for printing, and you can set it to 0 for full-bleed pages.
Your images are processed on your device. They are never uploaded, so it is safe for IDs and contracts.