Image Resizer PCA real Windows app, not a website
Most "image resizer" results are websites that make you upload your photo to someone else's server. Image Resizer PC is an actual desktop program: one portable .exe you can keep in a folder or on a USB stick, with nothing to install and no account to make.
It runs on Windows 10 and 11 (64-bit) and doesn't need the .NET runtime or an internet connection. Open it, resize, close it — your images never leave the PC.
- Single portable .exe — no install, no admin rights needed
- Works fully offline; safe for ID photos, signatures and private scans
- Windows 10 / 11, 64-bit
- No account, no watermark, no ads
Resize by pixels, cm, or an exact KB size
Three ways to size an image, depending on what the form or printer wants. Type exact pixel dimensions, or switch to centimetres and a DPI (handy for print and passport photos) and the app does the cm-to-pixels math for you.
The feature people come for: type a file weight in KB — say 100, 50 or 20 — and the app searches quality levels, and downscales if it has to, to land at or under that size. You can keep the aspect ratio or center-crop to an exact box so a photo fits a fixed frame without squishing.
- Pixels: e.g. 200×230 for an exam photo
- cm + DPI: e.g. 3.5×4.5 cm @ 300 DPI ≈ 413×531 px
- KB target: type 50 and it fits at or under 50 KB
- Keep aspect ratio or center-crop to an exact size
Staying sharp when you shrink
When you ask for a small file, the app always keeps the best quality that fits your target size. At gentle targets you usually won't notice any difference. At very small targets — like a 20 KB signature — some softening is unavoidable, and that's just how compression works.
A few habits keep results clean: start from the sharpest original you have, don't ask for a KB target far below what the image needs, and for photos stick with JPG. Use the preview to judge the result before you save.
First run and SmartScreen
Because the app is new and unsigned, Windows SmartScreen may show "Windows protected your PC" the first time you open it. That's a reputation prompt for new files, not a virus warning. Click "More info", then "Run anyway" and it opens normally. You only see this once.