Convert image to PDF
Turn a JPG, PNG, WebP or HEIC image into a PDF right in your browser, no upload — fit the page to the image or center it on A4.
How to convert an image to PDF
- Drop or pick an image — JPG, PNG, WebP, AVIF, HEIC, GIF, BMP or TIFF.
- Choose the page: fitted exactly to the image, or centered on A4 for printing.
- Convert and save the PDF — everything runs on your device.
Why convert images to PDF with OptImg?
Forms, applications and document uploads keep asking for PDF — and a photo of a receipt, an ID scan or a whiteboard shot is exactly the kind of file you don't want passing through someone's server. Online converters upload your image before returning a PDF; OptImg builds the PDF entirely on your device, so nothing is uploaded and there's nothing to wait for. Transparency survives, iPhone HEIC photos work directly, and sideways camera shots come out upright.
Frequently asked questions
- Is my image uploaded to a server?
- No. The PDF is built entirely in your browser: your image never leaves your device, and there's no queue and no account.
- Which page size should I pick?
- Fit to image keeps the page exactly the image's shape — best for sharing on screen. A4 centers the image on a standard print page with a margin — best when the PDF is headed for a printer or a form upload.
- Do iPhone HEIC photos work?
- Yes — HEIC and HEIF convert directly; the first HEIC fetches the decoder once and your browser keeps it. Sideways shots are straightened automatically.
- Does image quality change?
- Photos are embedded as high-quality JPEG (quality 90); images with transparency are embedded losslessly as PNG so the transparency survives onto the page.
- Can I combine several images into one PDF?
- Not yet — one image becomes a one-page PDF. Multi-page PDFs from an image stack are on the list.