CHM to WEBP using PHP

The PHP library for converting electronic books (e-book) to WEBP images.

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CHM to WEBP features

The PHP SDK for converting electronic CHM books (e-book) to WEBP images.

File conversion library for PHP

ConvertAPI provides a PHP library that allows you to perform a CHM to WEBP conversion with just a few lines of code. Convert CHM to WEBP documents using PHP programming language with no effort at all!

Execute the following command in your project root:
composer require convertapi/convertapi-php

Or install it manually using ConvertApi autoloader:

Following extensions are required: curl & json
require_once('/path/to/convertapi-php/lib/ConvertApi/autoload.php');

How To Convert CHM to WEBP using PHP?

You can convert CHM to WEBP in a few simple steps:

CHM to WEBP - complete code snippet for PHP

Once you have your authentication in place, simply copy-paste this chm to webp conversion code snippet into your PHP project:

// Code snippet is using the ConvertAPI JavaScript Client: https://github.com/ConvertAPI/convertapi-js

// Code snippet is using the ConvertAPI Node.js Client: https://github.com/ConvertAPI/convertapi-nodejs

// Code snippet is using the ConvertAPI PHP Client: https://github.com/ConvertAPI/convertapi-php

// Code snippet is using the ConvertAPI Java Client: https://github.com/ConvertAPI/convertapi-java

// Code snippet is using the ConvertAPI C# Client: https://github.com/ConvertAPI/convertapi-dotnet

# Code snippet is using the ConvertAPI Ruby Client: https://github.com/ConvertAPI/convertapi-ruby

# Code snippet is using the ConvertAPI Python Client: https://github.com/ConvertAPI/convertapi-python

// Code snippet is using the ConvertAPI Go Client: https://github.com/ConvertAPI/convertapi-go

REM Code snippet is using the command line utility program: https://github.com/ConvertAPI/convertapi-cli

<!-- For conversions with the multiple file result please refer to this example: https://repl.it/@ConvertAPI/HTML-Form-with-multiple-file-result -->

Try the conversion online - no coding required!

You can try out advanced conversion parameters and test the conversion result online using our interactive demo tool. This tool will produce the same conversion output as if you were using the library from your solution, and it will auto-generate the code snippet for you!

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Conversion parameters

ImageResolutionH Integer

Set output image horizontal resolution in dpi.

ImageResolutionV Integer

Set output image vertical resolution in dpi.

ScaleImage Bool

Scale the output image. If ScaleImage is False output document will be stripped to ImageHeight / ImageWidth, if ScalePage is True output document will be scaled to ImageHeight / ImageWidth.

ScaleProportions Bool

Constrain proportions when scaling the output image.

ScaleIfLarger Bool

Scaling only if the input image is larger than the output.

ImageHeight Integer

Image height in pixels.

ImageWidth Integer

Image width in pixels.

TextAntialiasing Collection

Control the use of text subsample antialiasing. The subsampling box size should be 4 bits for optimum text antialiasing, but smaller values can be used for faster rendering.

Values:   0 1 2 4

GraphicsAntialiasing Collection

Control the use of graphics content subsample antialiasing. The subsampling box size should be 4 bits for optimum graphics content antialiasing, but smaller values can be used for faster rendering.

Values:   0 1 2 4

ImageInterpolation Bool

Specifies whether the image parser should use image interpolation. Enabling image interpolation will result in higher quality for scaled images at the expense of speed.

UseCIEColor Bool

Specifies whether the image parser should remap the device-dependent.

ImageQuality Integer

Set output image quality.

Try CHM to WEBP for free!