Change Image Dimensions
Exact W × H, No Guessing
When a spec demands precisely 1200×628 or 600×600, enter the numbers. Crop, pad, or stretch - you decide how differing proportions resolve.
Proportion strategies
- Crop to fillCenter-crop overflow
- Fit with paddingLetterbox, whole image
- StretchIgnore proportions
- Background colorYour choice
Explore related tools
Different jobs, same file here's what people use alongside this tool.
How to set exact image dimensions
- 01Upload your imageAny JPG, PNG, or WebP source.
- 02Enter width and heightThen choose how the tool resolves any proportion mismatch.
- 03Download the exact fitOutput matches your specification to the pixel.
Features
Specification compliance
Ad banners, OG images, and marketplace slots demand literal dimensions - delivered.
Intelligent center-crop
Fill mode removes edge overflow symmetrically, keeping subjects centered.
Padding with purpose
Fit mode letterboxes onto your chosen background color for catalog consistency.
Explicit stretch
Sometimes distortion is intended (textures, abstracts) - available when you mean it.
Preview clarity
Computed output dimensions shown before processing.
Format freedom
Convert while dimensioning - JPG, PNG, or WebP out.
Slots that demand exact dimensions
Why exact dimensions matter upstream
Platforms crop unpredictably
Supplying exact specs means the platform never improvises with your framing.
Layout integrity
Templates with fixed slots break on off-spec images; compliant inputs never break.
Team consistency
Shared dimension standards keep collective output uniform.
Automation safety
Scripts consuming images assume dimensions; exactness prevents pipeline failures.
Cover, contain, stretch: choosing deliberately
Three philosophies govern what happens when source proportions differ from target dimensions. Cover treats the frame as a window - scale until both axes fill, then crop the overflow. Contain treats the frame as a stage - scale until the image fits entirely, padding the remainder. Stretch abandons geometry and maps pixels directly.
Cover suits photography because viewers prefer losing edges to seeing bars. Contain suits product documentation where cropping might hide the subject. Stretch suits almost nothing except deliberate abstraction, yet remains available because occasionally a texture genuinely must fill arbitrarily.
The professional habit is deciding consciously per context rather than accepting whichever default a tool applies. A LinkedIn banner and a product shot deserve opposite answers despite identical mechanics.
“Every platform's odd dimensions finally handled in one place - OG images, banners, posts.”
Laura Schmidt - Social media manager
“White-padding mode standardized 4,000 marketplace images to identical specs.”
Deepak Kumar - Catalog manager
“Header slots demand exact pixels; this is the only tool that never surprises me.”
Molly Brennan - Email designer
Frequently asked questions
What's the difference between crop-to-fill and fit-with-padding?
Crop fills the frame completely by removing overflow edges; padding fits the whole image and fills leftover space with your chosen color.
When should I use stretch?
Rarely - it distorts proportions. Textures, abstract backgrounds, and intentional effects are the legitimate cases.
Can I choose the padding color?
Yes. Fit mode exposes a color picker; white and brand colors are common choices.
Does this work for Open Graph images?
Perfectly - 1200×630 is a classic request, and crop-to-fill handles mismatched sources gracefully.
Will quality suffer at exact dimensions?
High-quality resampling keeps results clean; extreme enlargements soften as physics demands.
Can I process a batch to identical dimensions?
Yes - every file receives the same width, height, and mode.