ICO vs. DXF: Which Format is better?

By Admin | Updated 26th August, 2024

DXF and ICO formats offer matchless qualities and built-in features, which makes it challenging to choose and settle on a particular format for adoption or use. However, choosing an ideal format requires users to understand both formats technical features. The article compares the similarities and differences between DXF vs. ICO regarding browser support, performance, file size, compression, structure, storage, image quality, support for transparency, and animation.

DXF vs. ICO

Table of contents

When is ICO better than DXF?

ICO images are less detailed but support transparency and animations. Most web browsers widely support them, while DXF images are detailed and non-transparent, do not integrally support animations, and enjoy limited web browser support. This makes ICO files ideal for creating visually attractive application icons, website favicons, and desktop shortcuts.

When is DXF better than ICO?

DXF images are smaller, data-rich, detailed, and retain sharpness and precision because of their uncompressed nature, while ICO images are larger, simply structured, support limited color spaces, and lack the sharpness and accuracy of DXF format. This makes DXF files suitable for 3D printing, laser cutting, and CNC machining.

DXF versus ICO Comparison Table

Aspect/FactorDXFICO
Transparency Does not support transparency.Supports transparency
File SizeSmaller files compared to ICO files.Larger files compared to DXF files.
Image Quality Excellent quality and data-rich images.High-quality images, but slightly lower than DXF. 
PerformanceHighly web-responsive than ICO.Larger and less web-responsive than DXF. 
Structure Vector-based with a group code 0, and ends with a '0' closely followed by the string ENDSEC.Vector graphics with Icon directory joining image mask, XOR bitmap, a block, and the AND bitmap. 
Animation Does not support animations. Supports animations.
StorageLess storage space is required than ICO. More storage space is needed than DXF.
CompressionUncompressed. Supports PNGOUT/TinyPNG lossless compression.
Browser SupportLimited browser support than ICO.Broader browser support compared to DXF.

Differences and similarities between ICO and DXF images

Differences and similarities between ICO and DXF images

The ICO versus DXF comparison table above reveals that the formats differ in image quality, compression technique, web performance, storage needs, web browser support, file size, support for transparency, and animations.     

Transparency

ICO files integrally support transparency, while DXF files do not. DXF files are plain texts that can only be viewed and opened using basic text editing tools. The DXF extensions use numerical codes rather than human-readable tags to stipulate their file data. 

The ICO file extensions allow users such as web developers and graphic designers to add semi-transparent areas or transparency features, including shadows, anti-aliasing, and glass-like effects, to the images produced. Unlike the DXF format, the ICO file format supports 8 bits of transparency. 

File Size

ICO vs. DXF file size

DXF is a vector graphics format primarily used for CAD drawings. It is typically more efficient regarding file size, especially for complex designs, as it stores data in a structured text or binary format. On the other hand, ICO files, which are used for icons, can contain multiple bitmap images at different resolutions. These images can be uncompressed or use lossless compression, leading to larger file sizes, especially when higher-resolution images are included. 

Image Quality

DXF and ICO images are high-resolution and high-quality, although DXF image quality is a nick higher than ICO. The DXF supports the indexed values with 8-bit color per channel. Its RGB is a 24-bit True Color and it also supports a 32-bit RGBA True Color, making it a high-quality format.  

The ICO format supports 24-bit per color channel and 8 bits of transparency. Its bit-depth allows the format to produce detailed icons with limited color bands compared to DXF. ICO dictates the visual quality of each icon created and preserves image resolution and quality with up or down scaling.

Performance

The uncompressed DXF files are smaller than the lossless ICO files. ICO files require to incur more bandwidth costs, use more bytes, and load slowly online compared to the smaller, data-rich, and highly web-responsive DXF files. Thus, DXF files are preferred only because they are smaller, high-quality files.

However, ICO are widely supported by most web browsers, applications and Operating Systems compared to DXF files. Therefore, the limited support in such web browser platforms and software reduces DXF file's online use and adoption, resulting in minimal user experience than ICO images and files.

Structure

The DXF and ICO are vector-based formats. The DXF file has a header, classes, tables, blocks, entities, objects, and thumbnail images. The DXF code is the most vital variable in the header because it identifies the DXF format version. The contents are classified into sections using group codes and paired values. 

All sections include records, each with a data item and a group code. Every value and group code is free in the DXF file. Every section starts with a group code 0, followed by SECTION, group code 2 and a string with the section's name. All sections are made up of group codes and values defining their elements. 

The DXF file ends with a '0' followed by the string ENDSEC. The structural designs for both formats differ but can be compared because they are vector-based. Conversely, ICO files start with an Icon directory (ICONDIR), which contains the ICONDIRENTRY structure for every image in the ICO file. 

A contiguous block with image bitmap data closely follows each image file. It has the AND bitmap, XOR bitmap, and image masks. Its image bitmap data is in PNG or Windows BMP, which excludes the BITMAPFILEHEADER structure. It has multiple or single small images of varying color depths and sizes.

Animation

ICO vs. DXF animation support

ICO files support animations and lively images, while DXF files do not inherently support animations. DXF file has a default feature called 'animate' that supports the AutoCAD DXF file type in AutoCAD 10. The feature maps font appropriately to create animations following random text arrangements.

DXF files do not support solid fills, and such areas are spread as sketches. Thus, DXF files are ideal for line drawings, namely floor maps and plans, and not for generating animations or short video clips. The 2D DXF files can be embedded into Animate, which hardly supports 3D DXF files.

Storage

DXF files store uncompressed vector data, making them efficient in storage space. In contrast, ICO files store single losslessly compressed images, which can become larger when combined due to the nature of the compression used. This results in ICO files generally requiring more storage space than DXF files.

For minimal storage space demands, using the DXF format instead of the ICO file type is recommended, especially when vector graphics are involved. ICO file storage tends to consume more space due to the multiple image resolutions and compression methods.

Compression 

ICO files use lossless TinyPNG or PNGOUT compression, while DXF files are uncompressed. All DXF drawing file elements and objects are described using ASCII text. The format's images cannot be saved at lower resolution levels, and all pixels must be integrated into the DXF file uncompressed. 

The DXF format ensures image data retention, resulting in higher-quality and high-resolution images than ICO. ICO images are compressed using the lossless DEFLATE method that integrates Huffman coding with the LZ77 algorithm, although the compression is inefficient in reducing file sizes significantly.

Browser Support

ICO and DXF are vector-based file formats with different web browser support. Nevertheless, the ICO format enjoys universal support across legacy and new browsers such as Firefox, Chrome, Edge, and Opera, but it is unsupported by Safari and all versions of Internet Explorer.   

DXF files have limited browser support and are compatible with specific web browsers like Internet Explorer 11, 64-bit Mozilla Firefox, 64-bit Google Chrome, Safari, and 64-bit new Microsoft Edge. Other web browsers, including Opera, Brave, Discord, Vivaldi, IE 10 and below, do not support DXF files.  

Convert ICO to DXF or DXF to ICO

Convertjack helps you convert ICO to DXF promptly. DXF files are open-source, simply deconstructed, royalty-free, and extensively compatible with most systems and platforms, making them an ideal interchange platform between CAD software and other programs.

Convertjack is the least complicated online DXF to ICO converter. ICO files are flexible because they contain multiple images with varying color depths and sizes. They also allow users to store icons in one file, making it easier to design icons for display on various screen resolutions and devices.