Image Resizer — Resize Photos by Pixels, CM, MM & DPI Online
MakeCard Image Resizer is a precision dimension scaling utility that allows you to resize pictures and document scans by exact pixels (width × height), centimeters (cm), millimeters (mm), inches (in), or percentage scale. Whether you need an exact 3.5 cm × 4.5 cm passport photo for a visa application, a 200 × 230 pixel headshot for SSC/UPSC, or a 300 DPI high-resolution print image, this tool delivers pixel-perfect dimensions with aspect ratio locking.
How to Use Image Resizer
Select your image by dragging and dropping it into the upload box or clicking "Choose Image File".
Select your preferred measurement unit: Pixels (px), Centimeters (cm), Millimeters (mm), or Percentage (%).
Enter your required Width and Height. Keep the "Lock Aspect Ratio" box checked to prevent distortion, or uncheck it for exact custom dimensions.
Choose your desired output DPI (72 DPI for web, 200/300 DPI for official printing) and format (JPG, PNG, WebP).
Click "Resize Image" and download your perfectly dimensioned file.
Key Features & Capabilities
- Multi-Unit Measurement Engine: Seamlessly enter dimensions in Pixels, Centimeters, Millimeters, Inches, or Percentage.
- DPI Resolution Configuration: Set 72 DPI (web display), 150 DPI (standard print), or 300 DPI (high-resolution passport photo print standard).
- Aspect Ratio Lock Toggle: Prevents unintentional stretching, squishing, or distortion of faces and signatures.
- Multi-Format Export: Download your resized image in universal JPG, lossless PNG, or lightweight WebP format.
- 100% In-Browser Execution: High-speed bicubic canvas interpolation with zero file uploads.
Supported Formats & Specifications
| Parameter | Specification |
|---|---|
| Supported Input | JPG, JPEG, PNG, WebP, BMP, GIF |
| Measurement Units | Pixels (px), Centimeters (cm), Millimeters (mm), Inches (in), Percent (%) |
| DPI Options | 72 DPI (Screen), 150 DPI (Draft Print), 200 DPI, 300 DPI (Official Gov/Visa Standard) |
| Aspect Ratio | Lock Aspect Ratio toggle or freeform independent width/height |
| Output Formats | JPG (with quality slider), PNG (lossless), WebP |
Practical Everyday Use Cases
- Sizing passport photos to 3.5 cm × 4.5 cm at 300 DPI for Indian Passport, Schengen Visa, and US Visa applications.
- Setting exact 200 × 230 pixel dimensions for IBPS, SSC, and State Police recruitment portals.
- Resizing signature images to 140 × 60 pixels or 400 × 200 pixels for online exam submissions.
- Scaling banners, profile images, and product photos to exact dimensions for website publishing.
Pro Tips for Best Results
- When portal instructions state "3.5 cm × 4.5 cm at 300 DPI", switch the unit to "cm", enter 3.5 and 4.5, and select 300 DPI. The tool automatically computes the exact pixel equivalent (413 × 531 px).
- Always keep "Lock Aspect Ratio" checked unless the application portal strictly mandates specific rectangular proportions.
- If your original photo has a wide landscape background, crop it to portrait ratio using MakeCard Image Cropper first before resizing.
Common Problems & Solutions
Privacy & Security
100% Client-Side In-Browser Execution
Your images are resized locally inside your web browser. No photos or personal details are uploaded to our servers, ensuring complete privacy.
Frequently Asked Questions
Everything you need to know about using the Image Resizer