YouTube Banner
Resize image to perfect YouTube channel art dimensions (2560×1440).
How to Use YouTube Banner
- 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 is the correct YouTube channel banner size in 2025?
YouTube recommends 2560×1440 pixels for channel art/banner. The safe zone that displays across all devices is the center 1546×423 pixel area. Text and logos should be kept within this safe zone.
Why does my YouTube banner look different on mobile vs desktop?
YouTube crops the banner differently on each device. Mobile shows 1546×423 px (center), desktop shows 2560×423 px (full width, cropped height), and TV shows the full 2560×1440 px image. PDFtiny shows a visual overlay of all three safe zones.
What file format should I upload for a YouTube banner?
YouTube accepts JPG, PNG, BMP, and GIF. PNG is recommended for banners with text and logos as it is lossless. Maximum upload size is 6 MB.
Can I use a photo from my phone as a YouTube banner?
Yes. Modern smartphones take photos at 12–50 megapixels, far exceeding 2560×1440. Upload your phone photo and PDFtiny will resize it to the exact banner dimensions.