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Tool · Resize Files

Resize Image in CM, MM & Inches (300 DPI Passport & Print)

Resize any JPG, PNG, or WebP photo to exact physical dimensions in centimeters (cm), millimeters (mm), or inches at 300 DPI print resolution. Includes 1-click presets for 3.5×4.5 cm, 2×2 inch passport photos, and ID cards.

⚡ 0ms Local WASM / Hybrid 🔒 Zero Metadata Leak 🎯 Studio Precision
WASM + ISO-27001 HYBRID ENGINE
→
📏 Physical Size (CM / MM / Inch → 300 DPI Pixels)
Passport & ID Presets:

📈 Target Minimum File Size (Guaranteed ≥ KB)

Lossless JPEG Q100 + standard COM segment padding for government & exam portals

Tap to choose your file

QUICK INGEST:
Max 25 MB · Free plan · No signup required

Convert to:

Detecting available formats...

Target Max File Size:

Optimize for:
⚡ Instant In-Browser • 100% Private (0s)

Uploading...

⚡ Converted locally in your browser (0ms upload)

READY!

Download File
Original preview
Converted preview

🛡️ Verification Audit

  • ✓
  • ✓ sRGB Color Fidelity
  • ✓

Continue with this converted file (0s zero re-upload):

⚡ Install Desktop App for 1-Click Conversions

Batch Conversion Ready!

⚡ Install Desktop App for 1-Click Conversions

Need to convert larger files or bigger batches right now?

Unlock up to 1 GB & priority cloud queue with 1-click Stripe checkout (Apple Pay, Google Pay, Card):

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🕒 Recent Conversions (60m Session)
50/50 Visual Quality & EXIF Privacy Inspector
✓ Verified SSIM 0.992 (-97.1%)
🔍 200% Zoom Loupe
Output JPG (98.4 KB · -97.1% · SSIM 0.992)
Original JPG (3.4 MB)
◄ | ►
JPG JPG
◄ | ► Draggable split-screen curtain slider

EXIF & Color Verification Audit ISO Verified

  • ✓
    GPS Coordinates (37.1773° N, 3.5986° W): Stripped (Zero Location Leak)
  • ✓
    Device Serial & Lens ID: Stripped (EXIF / IPTC / XMP Clean)
  • ✓
    Color Space Profile: Display P3 → sRGB IEC61966-2.1
  • ✓
    Chroma Subsampling: 4:4:4 High Fidelity (Binary-search exact byte cap)
Size Reduction
-97.1%
3.4 MB → 98.4 KB
Visual SSIM
0.992
Perceptually Lossless

HOW TO USE Resize Image in CM, MM & Inches (300 DPI Passport & Print)

01

Upload Your File

Select or drag your file into the upload area above. We accept files up to 25 MB on the free plan.

02

Process

Our resize image in cm, mm & inches (300 dpi passport & print) tool processes your file automatically with optimized settings.

03

Download

Download your processed file instantly. Files are automatically deleted after 60 minutes.

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WHY USE OUR Resize Image in CM, MM & Inches (300 DPI Passport & Print)

No Installation Required

Works entirely in your browser. No software to download or install.

Free & Unlimited

Use our tool for free with generous limits. No hidden fees or subscriptions required.

Secure Processing

Your files are processed securely and automatically deleted. We never access your content.

Works on Any Device

Use on desktop, tablet, or mobile. Compatible with all modern browsers.

Secure Processing

Your files are encrypted during transfer, processed in isolated containers, and automatically deleted within 60 minutes. We never read, share, or store your data.

Frequently Asked Questions

At standard 300 DPI print resolution, 3.5 cm × 4.5 cm equals exactly 413 × 531 pixels (calculated via cm × 300 / 2.54). Click the 3.5×4.5 cm preset above to apply it automatically.

Select your desired width and height in cm, choose 300 DPI print density, upload your image, and convert. Our engine resamples using Lanczos filtering and embeds the exact 300 DPI metadata header.

At 300 DPI, a 2 × 2 inch (5.1 × 5.1 cm) US passport or visa photo is 600 × 600 pixels. You can select the 2×2 in preset with one click.

Yes. Switch the unit toggle between CM, MM, and Inches at any time, or use the built-in 6×2 cm signature and national ID presets.

Professional Workstation Solution
Unlimited Batch Jobs Zero Upload Wait Times Direct Disk-to-Disk I/O

Need to Convert Gigabyte Archives or Mass Folders?

KaijuConverter delivers ultra-fast in-memory conversions for everyday tasks. For multi-gigabyte production workloads without browser bandwidth bottlenecks, explore high-throughput desktop suites.

Zero cloud transfer • Native hardware performance
24-Hour Day Pass (€1.99 one-time) Up to 1 GB · No subscription

One-time payment with zero recurring commitment: convert files up to 1 GB and 50-file batches for 24 hours.

Instant Stripe Checkout →
Kaiju Cloud Starter (€3/mo) Up to 250 MB / file

Convert large videos, PDFs, and lossless audio directly in your browser—100% ad-free with priority queue.

Instant Stripe Checkout →
Kaiju Cloud Pro (€9/mo) Up to 1 GB + 50 Batch

High-throughput cloud pipeline for files up to 1,024 MB, 24-hour encrypted storage, and priority processing.

Instant Stripe Checkout →
ImageMagick CLI / XnConvert Free • Mass Batch

Convert thousands of camera RAW files (CR3, NEF, ARW) to WebP, AVIF, or TIFF in one pass.

Affinity Photo / Adobe Lightroom Photo Pro

GPU-accelerated RAW development with end-to-end 16-bit ICC color profile management.

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