Змінюйте розмір зображень прямо у браузері
Resizing images is one of the most common tasks in digital life — whether you need a smaller avatar for a social profile, a web-optimised image for your site, or a photo scaled down to fit an email attachment. Most online tools force you to upload your file to a server, which creates unnecessary privacy risks. PDF-Snap's Image Resize tool works entirely in your browser: no upload, no account, no data leaving your device.
Why resize images locally?
When you upload an image to a third-party service, you're trusting that service with your file — indefinitely, in many cases. Browser-based resizing eliminates that risk entirely. Your image data is processed by JavaScript running on your own device, and the resized file is downloaded directly to your downloads folder. Nothing is transmitted over the network.
Supported formats
PDF-Snap's resize tool accepts JPEG, PNG, WebP, BMP, GIF, and HEIC images. The output format matches the input — a PNG stays a PNG, a JPEG stays a JPEG. For JPEG and WebP outputs you can also control the output quality, giving you a second lever to reduce file size alongside dimension changes.
Змінити розмір зображення безкоштовно →
How to resize an image step by step
- Open PDF-Snap Image Tools and click the Resize tab.
- Drop your image onto the drop zone, or click to browse your files.
- Enter a target width or height in pixels. The aspect ratio is locked by default — change one dimension and the other adjusts automatically. Unlock it if you need to set both independently.
- For JPEG or WebP images, use the output quality slider to balance file size against visual quality.
- Click Resize image. Processing happens instantly in your browser.
- Download the resized file when the result is ready.
When to use resize vs compress
Resizing changes the pixel dimensions of an image — ideal when you need to fit an image into a specific canvas or meet a platform's dimension requirements. Compressing reduces file size without necessarily changing dimensions — better when you need to shrink a photo for email but keep it at its original resolution. For the largest reductions, combine both: resize first, then compress.
Common use cases
- Social media avatars — most platforms require images under a specific pixel dimension.
- Email attachments — shrink a 4000 × 3000 photo down to 1200 × 900 before sending.
- Web images — display images at the intended resolution to avoid wasted bandwidth.
- Thumbnails — generate preview images without leaving your browser.
PDF-Snap is entirely ad-funded — there are no subscriptions, no file size limits, and no account required. All processing runs locally in your browser, keeping your images private.