How to use it
- Add a small photo
- Choose 2× or 4×
- Download the sharper photo
Questions people ask
How big can the photo be?
Upscaling is for small photos. Bigger photos are reduced first so your phone doesn't run out of memory.
Is AI Image Upscaler really free?
Yes. Every PDFtoOne tool is free with no login, no daily limit and no watermark. The site is supported by ads.
Is there a file size limit?
We set no limit. Files are processed by your own device, so the only limit is its memory. Computers handle very large files; phones handle most everyday files easily.
Does it work offline?
Yes. Once you have used a tool, it keeps working without internet. You can also install PDFtoOne as an app.