Resize Image for TikTok Video — Free Online Tool
TikTok videos display at 1080x1920 pixels — the full-screen 9:16 vertical format. PDFBro resizes your cover images and photo slides to these exact dimensions online for free. Whether you're creating a TikTok photo slideshow, designing a video cover frame, or making image-based content, the right dimensions ensure your content fills the entire screen.
Free Online Tool
Resize Image
Resize any image to exact dimensions — set custom width and height, maintain aspect ratio
How to Resize an Image for TikTok Video
Upload your image
Drag and drop any image into PDFBro's resize tool. Supports JPEG, PNG, WebP, and SVG formats up to 100 MB. Works on desktop, tablet, and mobile browsers.
Set dimensions to 1080x1920
Enter 1080 for width and 1920 for height. This is the exact TikTok Video resolution (9:16 (vertical) aspect ratio). Enable 'Maintain aspect ratio' for proportional scaling, or disable it to force exact dimensions if your original aspect ratio differs.
Download your resized image
Click Resize and download your perfectly sized TikTok Video image. Zero watermarks, zero quality loss from the resize operation, instant download. Use it directly on TikTok.
Best Uses for TikTok Video Images
TikTok photo mode slideshows, video cover/thumbnail images, TikTok carousel images, slideshow presentations, before-and-after reveal covers, and trending template cover photos. Full-screen 9:16 images perform best in the For You Page algorithm.
Why Use PDFBro to Resize Images
Frequently Asked Questions
What image size does TikTok use?
1080x1920 pixels (9:16 vertical) is TikTok's native video and photo mode resolution. This fills the entire phone screen without letterbox (black bars). TikTok supports horizontal (16:9) content but vertical content performs significantly better because it matches how users hold their phones.
Can I post horizontal images on TikTok?
Yes, but they won't fill the screen — large black bars appear on top and bottom, and engagement is typically lower. TikTok's algorithm favors full-screen 1080x1920 content. Resize horizontal photos to 1080x1920 with PDFBro, either by cropping or adding a background, for maximum engagement.
What resolution do TikTok photo slideshows need?
1080x1920 pixels for each photo in the slideshow. Each image should be exactly 9:16 to avoid cropping. PDFBro can batch-resize all your slideshow images to uniform dimensions — process each image individually with the 1080x1920 preset.
Why is my TikTok image blurry after uploading?
TikTok compresses uploads heavily. Starting with the native 1080x1920 resolution and a well-compressed JPEG (85-90% quality) gives you the best possible quality after TikTok's processing. Uploading smaller images or very large images (which TikTok downscales poorly) both result in blur.