About CDR Files
CorelDRAW
CDR is the native vector graphics format for CorelDRAW, a popular illustration and graphic design application. It supports multi-page documents, layers, color management, and both vector and bitmap content in a single file.
Family
Raster & Vector Images
Extension
.cdr
MIME Type
application/cdr, application/x-cdr
Can Use As
43 44 52 46 00 01 00 00 4B 41 49 4A
ASCII: CDRF....KAIJ
📈 Target Minimum File Size (Guaranteed ≥ KB)
Lossless JPEG Q100 + standard COM segment padding for government & exam portals
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HOW CDR CAME TO BE.
CDR is the native format of CorelDRAW, the vector illustration app from Corel Corporation in Ottawa. CorelDRAW 1.0 shipped in January 1989 on a single 3.5-inch floppy. It was the first app to offer full-color vector illustration on Windows at a consumer price point — and for most of the 1990s, CorelDRAW was the default vector tool in signage, large-format printing, and CAD-adjacent workflows where Adobe Illustrator was considered too expensive.
CDR has been through 24+ major versions, and the binary format has changed dramatically with each. A CDR from CorelDRAW 5 (1994) may not open in CorelDRAW 2025 without a pass through intermediate versions. The format is proprietary; Corel publishes no spec. Inkscape has reverse-engineered limited CDR import support, but fidelity is patchy. For sharing, CorelDRAW exports AI, SVG, and PDF.
Technical Specifications
- MIME type
- application/x-coreldraw
- Extensions
- .cdr, .cdt (template), .cmx (interchange)
- Container
- Proprietary binary (RIFF-like)
- Native app
- CorelDRAW
- Versions
- 1 (1989) through 2024 and beyond
Typical Sizes & Weights
Logo with a few objects
100-500 KB
Multi-page brochure
5-30 MB
Complex vehicle wrap design
50-300 MB
STRENGTHS & LIMITATIONS.
Strengths
- Native format for CorelDRAW, an industry standard in signage and prepress.
- Multi-page documents (unlike Illustrator's art boards).
- Strong color management (CMYK, Pantone spot, ICC).
- Large market share in Eastern Europe and niche print industries.
Limitations
- Proprietary, unstable format — versions drift dramatically.
- No Adobe Illustrator interoperability; SVG export is the compatibility path.
- Third-party CDR import support (Inkscape, etc.) is partial.
- File sizes balloon quickly with embedded photos.
CURIOSITIES & TRIVIA.
CorelDRAW 1.0 (1989) shipped on a single 3.5" floppy disk and cost $495.
The CDR file format has been rewritten about once per major version — 24+ CorelDRAW versions means 24+ subtly incompatible variants.
In sign-making, vehicle-wrap, and textile-printing shops, CDR remains more common than Adobe Illustrator's AI.
Corel is based in Ottawa, Canada — one of the few major commercial vector tools not built in California.
CorelDRAW was famously bundled with Pantone color systems earlier than Illustrator, making it the prepress favorite for spot-color work in the 1990s.
Specialized Utilities for .CDR Files
Compress Image to 20KB
Compress signature scans, stamp images, and ID photos to strictly ≤ 20 KB (20,000 bytes) for strict online exam and government application portals using binary-search JPEG quantization.
Compress Image to 50KB
Compress JPG, PNG, or WebP photos to strictly under 50 KB (50,000 bytes) for passport portals, university admissions, civil service forms, and KYC uploads without changing pixel dimensions.
Compress JPG to 100 KB
Upload a JPG and download a decodable JPG at or below 100,000 bytes. If the limit cannot be reached, no output is offered.
Crop Image & Photo Resizer
Crop and resize JPG, PNG, WEBP, and AVIF images to exact pixel dimensions, social media aspect ratios, or custom print DPI online for free.
Resize Image
Resize images to exact dimensions or scale by percentage. Lock aspect ratio to prevent distortion. Supports all common image formats.
PNG Compressor — Reduce PNG Size Preserving Transparency
Compress PNG images up to 80% while preserving full alpha-channel transparency, or lock exact file size targets (20 KB, 50 KB, 100 KB).
WEBP Compressor — Optimize WebP for Core Web Vitals
Compress WEBP images for ultra-fast page loads and Lighthouse scores with fine-grained quality sliders and exact byte targets.
Favicon Generator — Multi-Resolution .ICO from PNG, SVG or WEBP
Generate a production-ready multi-resolution favicon.ico containing 16x16, 32x32, 48x48, 64x64, 128x128, and 256x256 alpha layers from any logo.
EXIF Metadata Remover
Strip hidden GPS coordinates, camera serial numbers, timestamps, and XMP/IPTC metadata from JPG, PNG, WebP, and TIFF photos before sharing online.
Image to Text (OCR)
Extract text from images using optical character recognition. Supports photos of documents, screenshots, receipts, and handwritten notes in 100+ languages.
JPG to Word Converter (OCR)
Convert scanned JPG, PNG, and WEBP images into editable Microsoft Word (DOCX) documents using 12-language optical character recognition (OCR).
CONVERT FROM CDR
Common Use Cases
Vector illustration, graphic design, CorelDRAW workflows, sign making
Related Formats
Popular comparisons
CDR vs JPG
Differences, file size, and when to choose each format.
CDR vs PNG
Differences, file size, and when to choose each format.
CDR vs WEBP
Differences, file size, and when to choose each format.
CDR vs AVIF
Differences, file size, and when to choose each format.
CDR vs GIF
Differences, file size, and when to choose each format.
CDR vs BMP
Differences, file size, and when to choose each format.
Popular CDR conversions
The most-requested destinations when starting from CDR.
Frequently Asked Questions
CDR (CorelDRAW) is an image format used to store raster graphics — a two-dimensional grid of pixels describing a picture. It is part of the raster & vector images family and designed around a specific trade-off between file size, visual fidelity, and feature support (transparency, colour depth, compression type). Photographers, web designers, and content creators choose CDR when its particular strengths match the publishing target.
Most desktop photo viewers (Windows Photos, macOS Preview, GIMP, Photoshop, Affinity Photo) open CDR natively. On mobile, iOS Photos and Google Photos display CDR in the gallery when supported by the OS. If the format is rare or new, convert to JPG or PNG first — both are universally readable — using our CDR to JPG or CDR to PNG converter.
Upload the CDR to KaijuConverter and pick a target format (JPG, PNG, WebP, HEIC, TIFF, BMP, SVG, PDF). The conversion runs in the browser via ImageMagick and returns a download in seconds. No account or installation required; both input and output delete automatically within two hours.
It depends on the task. JPG is the smallest file size for photographs; PNG is lossless with transparency; CDR has its own niche that may favour colour depth, animation, or encoding efficiency over one or both of those. For the final web publish, test all three and measure file size plus visible quality on real content.
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