PDFimage

Image to PDF converter

Put photos, screenshots and scans into a single PDF — one image per page, in the order you set. It all runs on this device, so nothing is uploaded and there is no file-size cap beyond your device’s memory.

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How an image lands on a page

A PDF page is measured in points (72 per inch); a photo is measured in pixels. Change the settings and watch where a 12-megapixel phone photo ends up — and how many pixels per inch it prints at.

Page 11.69 × 8.27 in. The 4032×3024 px image is printed 10.36 × 7.77 in, which works out to about 389 pixels per inch.

How to convert images to PDF

  1. Add images. Drop them on the box, choose them, paste a screenshot, or on a phone take a photo straight into the list.
  2. Set the order. Drag cards, or use the arrow buttons. “Sort A→Z” orders by file name with numbers sorted naturally (IMG_2 before IMG_10).
  3. Rotate any sideways photo with ⟳.
  4. Pick a page size. A4 or US Letter for forms and printing; “Same as image” for a page that hugs each picture with no white border.
  5. Convert. The PDF downloads straight away.

Which formats work

JPG/JPEG, PNG, HEIC and HEIF (iPhone), WebP, SVG, TIFF (first page), GIF (first frame), BMP and AVIF where your browser can decode it. JPG and PNG files are embedded without recompression at “Original” quality; the others are decoded in the browser and stored as a 90% JPEG or a lossless PNG — the explainer on each format page shows which.

Limits, honestly

  • Memory, not megabytes, is the ceiling. Desktop browsers comfortably handle a few hundred phone photos; older phones may struggle past 50–100 large photos in one go. If that happens, pick “Smaller file”, which caps each image at 1600 px on the long side.
  • One image per page. This tool doesn’t tile several photos onto one sheet.
  • No text recognition. The PDF contains pictures, so text in them is not searchable or selectable.
  • EXIF rotation: JPEGs keep their stored orientation; if a phone photo appears sideways in the preview, rotate it before converting.

Going the other way

Need pictures out of a PDF instead? PDF to JPG and PDF to PNG render each page at the resolution you choose, and Extract images pulls the embedded photos out at their stored size.

Questions

Are my files uploaded anywhere?

No. The page loads once, then all reading, decoding and PDF building happens in your browser tab with JavaScript and WebAssembly. You can switch to airplane mode after the page has loaded and it still works.

Is it free? Is there a watermark?

Free, no watermark, no sign-up and no daily limit. There is nothing to meter because nothing runs on our servers.

How do I combine multiple images into one PDF?

Add all the images at once (or in several batches), arrange them, and press Convert. Each image becomes one page of the same PDF.

Will my photos lose quality?

At “Original” quality, JPG and PNG files are copied into the PDF unchanged. HEIC, WebP and other formats are decoded once and saved as a high-quality JPEG or lossless PNG, because PDF can’t store them natively.

Why is my PDF so big?

A PDF made from originals is roughly the size of the photos combined — twelve 3 MB phone photos make a ~36 MB PDF. Choose “Smaller file” to resize to 1600 px and recompress; that usually cuts it by 80–90%.

Can I use it offline?

Yes, once the page has loaded. The converter code is part of the page; there is no server step.