Image Cropper
Crop images with preset ratios: 1:1, 16:9, 4:3 and more.
How to Use Image Cropper
- Upload your file: Drag and drop your file into the active processing area above, or click the box to browse your device files.
- Configure settings: Select your preferred options (such as target file size in KB, compression level, page order, or output format).
- Process locally: Click the primary action button. Your file is rendered and encoded in seconds directly inside your browser memory.
- Download output: Click Download to save the modified document back to your device. No watermarks are added.
Zero-Cloud Privacy Guarantee
Unlike legacy web utilities that upload your sensitive documents to remote servers, PDFtiny executes 100% of processing inside your local browser using WebAssembly. Your files never leave your computer, ensuring complete privacy, enterprise compliance, and offline availability.
Technical Specifications
| Parameter | Specification |
|---|---|
| Processing Engine | Client-Side WebAssembly (WASM) & HTML5 File API |
| Server Transmission | 0 Bytes Uploaded (100% Local Browser Memory) |
| Device Compatibility | Chrome, Safari, Firefox, Edge, Android, iOS, Windows, Mac, Linux |
| Compliance | ISO 32000-2:2020, GDPR Article 25 (Privacy by Design) |
Frequently Asked Questions
What preset aspect ratios are available?
PDFtiny includes presets for 1:1 (Instagram & profile avatars), 16:9 (YouTube thumbnails & banners), 4:3 (standard photography), 9:16 (TikTok & Reels), 3:2, and freeform manual crop.
Does cropping reduce photo resolution?
Cropping only removes outer pixels outside your selection box; the cropped region itself retains 100% of its native pixel sharpness and color fidelity.
Can I crop PNG images with transparent backgrounds?
Yes, transparency is preserved when exporting cropped PNG files.
Can I zoom and rotate inside the cropping box?
Yes, you can pan, zoom in/out, and rotate the canvas to frame your subject perfectly before applying the crop.