Image Tools
Compress PNG Java Overview
Compress PNG images to smaller sizes while preserving visual quality and full alpha transparency. Choose a compression level, set a percentage reduction, or target a specific output file size to meet web, email, and storage limits. Smart palette optimization reduces file sizes by up to 80% without noticeable artifacts, making it ideal for optimizing UI assets, screenshots, logos, and graphics for faster page loads and lower bandwidth. Upload a .png and get an optimized .png suitable for fast delivery and efficient archiving. Includes a ready-to-use Java library.
Lightning Fast Conversions
Process and convert files in seconds with our high-performance cloud infrastructure.
Accuracy Guaranteed
Our advanced algorithms ensure pixel-perfect and content-accurate file conversions.
Enterprise-Grade Security
ISO 27001, HIPAA, and GDPR compliant with encrypted file processing.
Global Infrastructure
Strategically located servers ensure low latency and high availability worldwide.
Developer Friendly
Comprehensive SDKs and clear documentation for quick and simple integration.
Time-Saving Automation
Automate repetitive document workflows and focus on what matters most.
Customizable Parameters
Fine-tune your automation with these powerful conversion options
File
File Supported formats: .pngFile to be converted. Value can be URL or file content.
CompressionLevel
Collection Default: ExtremeImage compression level.
Values: Lossless Good ExtremeCompressionPercentage
IntegerCompress the image to a target size, given as a percentage of the original file size. A lower value produces a smaller file, so 20 aims for roughly 20% of the original size and 90 applies only light compression. Overrides CompressionLevel unless it is set to lossless.
CompressionFileSize
IntegerCompress the image to a target file size in kilobytes. A lower value produces a smaller file. This is a best-effort target: the result is the closest size at or below the requested value that the format allows. Overrides CompressionLevel unless it is set to lossless.
StoreFile
Bool Default: FalseWhen the StoreFile parameter is set to True, your converted file is written to ConvertAPI’s encrypted, temporary storage and made available via a time-limited secure download URL, valid for up to 3 hours. After this period, the file is permanently deleted.
When StoreFile is set to False, conversion happens entirely in-memory. The raw file bytes are streamed back in the API response without touching disk or external storage, ensuring maximum security and zero persistence so that only you can access the content.
Step-by-Step Guide
Easy Compress PNG integration using our modern Java SDK
1. ConvertAPI Java library install
ConvertAPI provides a Java SDK that allows you to perform a Compress PNG conversion with just a few lines of code. Compress PNG documents using Java programming language with no effort at all!
# Add the following dependency to your pom.xml:
<dependency>
<groupId>com.convertapi.client</groupId>
<artifactId>convertapi</artifactId>
<version>2.10</version>
</dependency>
2. Authenticate your Java library
You can obtain your API Token by signing up for a free account. Once you sign up, you'll receive 250 free conversions instantly! Grab your API token from the account dashboard, and authenticate the ConvertAPI Java library like this:
# get your API Token here: https://www.convertapi.com/a/auth
use \ConvertApi\ConvertApi;
Config.setDefaultApiCredentials("api_token");
Compress PNG using Java in no time!
Once you have your authentication in place, simply copy-paste this png to compress conversion code snippet into your Java project:
Integrate within minutes
Easy Compress PNG automation using our simple Java SDK
Compatible With all Java Frameworks & Tools
Businesses trust us
Highest rated File Conversion API on major B2B software listing platforms: Capterra, G2, and Trustpilot.
"ConvertAPI has been a game-changer for our document automation workflows. Their conversion accuracy and API reliability are unmatched in the industry for over 7 years."
"ConvertAPI is a reliable, cost-effective solution with a proven track record of stability. It has grown significantly in maturity, adopting enterprise-grade practices over the years."
"We've integrated ConvertAPI across our entire document processing platform. The performance is exceptional and the support team is always responsive. Highly recommended!"
Enterprise-Grade Security
We ensure that all document processing is handled securely in the cloud, adhering to industry-leading standards like ISO 27001, GDPR, and HIPAA. To enhance security even further, we can ensure that no files or data are stored on our servers and never leave your country.
Learn more about security