Resize Image
Resize images by exact dimensions or percentage. Supports JPG, PNG, WEBP, BMP, and GIF. Free, no signup, up to 200MB.
Drop your image here
Resize any image — up to 200 MB
How to Resize an Image
Smart PDF Lab resizes images in four steps with pixel-perfect control.
Upload your image.
Drop your image or click Browse files to upload files up to 200MB.
Choose resize method.
Enter exact width and height in pixels, or use a percentage scale.
Lock or unlock aspect ratio.
Maintain proportions automatically or stretch dimensions independently.
Download the result.
Save your resized image directly to your device.
Why Resize Images With Smart PDF Lab
Smart PDF Lab handles every common resize scenario, from preparing social media uploads to creating responsive web images. Resize for specific platform requirements like Instagram squares, LinkedIn banners, or YouTube thumbnails. Scale down oversized photos for email or chat.
Create multiple sizes from one source for responsive websites. The tool preserves color accuracy and applies smart resampling to maintain sharpness. Files up to 200MB, no signup, no watermark.
Resize Modes Available
Choose the method that fits your project:
Enter specific width and height values for precise dimensions.
Reduce or enlarge by a percentage (50%, 75%, 150%) for proportional resizing.
Maintain original proportions automatically when changing one dimension.
Quick-select for social media platforms (1080×1080, 1200×630, and similar).
Works with JPG, PNG, WEBP, BMP, and GIF.
Smart resampling reduces pixelation when scaling up.
Will resizing reduce my image quality?
How do I keep proportions when resizing?
Can I batch resize multiple images?
Related tools
Compress Image
Reduce image file size without losing quality. Supports JPG, PNG, and WEBP.
Open tool →JPG to PDF
Convert your JPG, PNG, or WEBP images to a single PDF document. Reorder, resize, and customize layout.
Open tool →PNG to JPG
Convert PNG images to JPG format. Smaller file size with adjustable quality.
Open tool →