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
- Drop or pick your JPG image.
- Choose the page: fitted to the image, or centered on A4.
- 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).