Image Converter
Convert images between JPG, PNG and WebP formats.
How to Use Image Converter
- 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
Can I convert Apple iPhone HEIC photos to JPG?
Yes, PDFtiny natively decodes Apple HEIC/HEIF photos client-side using WebAssembly and converts them to universal JPG or PNG files without quality loss.
Which format gives the smallest file size without quality loss?
WebP is recommended for web use as it typically provides 25–35% smaller file sizes than comparable JPG or PNG images while preserving transparency and sharp details.
Can I batch convert multiple image formats at once?
Yes, drop dozens of mixed files (PNG, JPG, WebP, AVIF) into the converter and transform them all to your chosen target format with a single click.
Is image transparency preserved when converting PNG to WebP?
Yes, alpha transparency channels are fully preserved when converting from PNG to WebP.