JPG to PDF

Convert JPG to PDF, free and 100% in your browser. No upload, no signup — fit the page to the image or center it on A4.

How to convert an image to PDF

  1. Drop or pick your JPG image.
  2. Choose the page: fitted to the image, or centered on A4.
  3. Convert and save the PDF — all on your device.

About image to PDF

JPEG is the universal lossy photo format, small and readable everywhere, but with no transparency. As a PDF it becomes what forms, printers and document uploads expect — one page, exactly your photo.

OptImg builds the PDF entirely on your device: nothing is uploaded, sideways camera shots come out upright, and you choose the page — shrink-wrapped to the image or centered on A4 for printing.

Frequently asked questions

Is my JPG uploaded to a server?
No. The PDF is built entirely in your browser: your JPG never leaves your device, and there's no queue and no account.
Does image quality change?
The photo is embedded at high quality (JPEG 90) with orientation corrected — visually identical for forms, sharing and print.
What size is the PDF page?
Your choice: fitted exactly to the image (best on screen), or A4 with the image centered inside a margin (best for printing and form uploads).