# Upscale Image > Increase image resolution using AI-style super-resolution (Lanczos interpolation). - Page: https://acepdfmd.com/tool/upscale-image/ - Updated: 2026-09-12 - Runs at: https://acepdfmd.com (Uploaded files are deleted within 60 minutes. No signup for light use.) - Also in 29 languages: https://acepdfmd.com//tool/upscale-image/ ## Upscale a small image to a larger size An old photo, a low-resolution logo, or a thumbnail saved from a website is often too small for what you want next, whether that is printing, a banner, or a slide. Upscale Image takes a picture and enlarges it, filling in the extra pixels so the result looks like a bigger version of the same photo rather than a blocky, stretched copy. You pick a factor of 2, 3, or 4 times the original width and height, with double size as the default. The tool works out sensible values for the new pixels between the ones you already have, smoothing edges and gradients so enlarging a photo does not just produce a soft, pixelated mess. This works well on photos, illustrations, and simple graphics, but it cannot recover detail that was never captured in the first place, so a tiny, blurry thumbnail comes out bigger and a little smoother, not sharp and crisp. There is a practical ceiling on output size to keep the file from becoming unworkably large, so pushing a very big source through the highest factor may not be allowed. If your goal is hitting a specific pixel width or height rather than a fixed multiple of the original, Resize Image gives you that direct control instead. The file you upload here is processed on the servers and removed automatically within the hour. ## How to use the Upscale Image tool 1. Add your JPG, JPEG, PNG, WEBP, BMP file: drag & drop or click to browse. 2. Set your options: Upscale factor. 3. Click “Process Upscale Image” and download your result. ## Common questions ### Is Upscale Image free? Yes. Upscale Image is free for light use with no signup needed. Anonymous visitors get 10 free tasks per day, and creating a free account makes daily use unlimited. A paid Pro plan removes ads and raises file-size limits for heavier work. ### Is my file safe? Yes. Your file is sent over HTTPS, processed by self-hosted open-source software on our servers (no third-party AI or cloud APIs), and deleted within 60 minutes at the latest, usually right after your result is ready. ### What file formats does Upscale Image accept? Upscale Image accepts JPG, JPEG, PNG, WEBP, BMP files. Convert other formats to a supported one first; the related tools below can usually do it. ## Related tools - [Resize Image](https://acepdfmd.com/tool/resize-image/): Resize images by pixels, percentage, or target file size in KB. Batch resize multiple images at once. - [Convert Image](https://acepdfmd.com/tool/convert-image/): Convert between JPG, PNG, WebP, BMP, GIF, TIFF and more. - [PDF to Image (HQ)](https://acepdfmd.com/tool/pdf-to-image-hq/): Export PDF pages as high-resolution PNG or JPG images. - [Basic Image Editor](https://acepdfmd.com/tool/basic-image-editor/): Crop, rotate, adjust brightness/contrast/saturation, and convert to grayscale, all in one interactive editor. - [Compress Image](https://acepdfmd.com/tool/compress-image/): Reduce image file size while preserving quality. Target a quality level or an exact KB size. Read the guide: [OCR for PDFs and Images: How to Get Accurate Text](https://acepdfmd.com/guides/ocr-guide/)