TinyPNG Introduction

Tiny PNG is a tools of compressed PNG or JPEG image online , also that quality of compression is better

Official website of TinyPNG：https://tinypng.com/

Attach a screenshot of the official website：

Foreword

The main reason for writing this script at that time was that many scripts of TinyPNG on the Internet were written in Python, which required Python environment and install tinify package. It was too troublesome. Then, I found that official website of TinyPNG had provide Java API , so I decided to write a jar to encapsulate these troubles to use a jar can be realize image compression.

Preparation

Fisrt, apply an API_KEY in TinyPNG. Note: Each API_KEY only can be compress 500 images every month. Of course, you can apply more API_KEY in multiple mailboxes. Then the size of each compressed image can't be more then 5 M.

Second, Pull the TinyImg prject and open it use IDEA，find the TinyHelper.java .
Replace FC8dkDxbNVlJHL9JpmfCT0YzzRgVXZXT to your API_KEY，as follows：

static {
    setKey("FC8dkDxbNVlJHL9JpmfCT0YzzRgVXZXT");
}

Third, select in menu bar : Build -> Build Artifacts -> TinyImg.jar -> Build, the jar can be use directly after generate, as follows:

Want to simple? You can try the way

1. Dowload the tinyimg.jar file had build successfully. This file have a built-in API_KEY. I am not sure the API_KEY whether effective, so you had better replace it to your API_KEY
2. Open it as zip file, but didn't unzip! find the file com/ytempest/tinyimg/TinyHelper.class inside, and unzip this file.
3. Open thd class file in noptepadd++ [Other edtior also can as long as its encoding format is ANSI ].
   Search FC8dkDxbNVlJHL9JpmfCT0YzzRgVXZXT in file and replace it to your API_KEY and save.
4. Replace the original TinyHelper.class in tinyimg.jar to a new TinyHelper.class modify by us. Congratulation, you can use it now.

Guess: When the Java source file is compiled into a class file, the string resource will not be modified, but the encoding format has changed. Note that the string length modified in this way must be consistent with the string length of the source file, otherwise the operation of the class file will be damaged

Usage

1. Environment

Please ensure JDK Environment, setup it if didn''t had.

2. How use

Options

option	argument	explain	example
-h		help document	java -jar -h
		compress the image under direcotry	java -jar tinyyimg.jar
－k	APK_KEY	API_KEY apply from TinyPNG	java -jar tinyimg.jar -k API_KYE
－i	input path	path of image or directory	java -jar tinyimg.jar -i inputPath
-o	ouput path	path of image or directory	java -jar tinyimg.jar -o outputPath
-r		compress all the image under diectory when input is directory	java -jar tinyimg.jar -r

Example

1、Compress single image file：

Example：java -jar tinyimg.jar inputImgPath outputImgPath

Explain：

• inputImgPath ：The path of image need compress

• outputImgPath：Output path of image compress finish. [Selectable, default override original file if not set ]

2、Compress image file under directory：

Example One ：java -jar tinyimg.jar

Explain：

• Compress the image file under current directory and override original imagefile
• If you want to compress the image file under current directory and ouput to target directory. you can use : java -jar tinyimg.jar . outputDirPath

Example Two：java -jar tinyimg.jar inputDirPath outputDirPath

Explain：

• inputDirPath ：The directory that include the image file need to compress

• outputDirPath：The path of output after compress finish. [Selectable, default override if not set]

3、Set the API_KEY of TinyPNG

Example：java -jar tingyimg.jar -s FC8dkDxbNVlJHL9JpmfCT0YzzRgVXZXT

4、Compress image under directory recursively

示例：java -jar tinypng.jar -r

Updates

• v1.0 support compress single image file and direcotry include image
• v1.1 add the support of options，and improve the process
  • support set API_KEY of TinyPNG
  • support compress all the image file under directory recursively