HomeCodeHow To Compress PDF Files Using C# Programming Language Via ConvertAPI

How To Compress PDF Files Using C# Programming Language Via ConvertAPI

As a C# developer, you may need an API to quickly and easily compress PDF files.

Compress PDF Whether you’re sending large documents via email or uploading them onto a website with limited storage capacity, compressing the file size helps make access easier and faster while reducing hosting costs associated with online data storage solutions.

ConvertAPI’s easy-to-use API integration system and comprehensive documentation allows developers to quickly get their applications to handle compressing PDFs with minimal effort.

For even the large enterprises, ConvertAPI offers scalable options to ensure that the user’s applications can handle large files with a guaranteed 99.95% Service Level Agreement.

How to Use ConvertAPI Compress Function for C#

The first step is to install the ConvertAPI library from NuGet using the following command:

PM > Install-Package ConvertApi

Next, create an instance of the API class, passing it your API key. For example:

var convertApi = new ConvertApi(“API-Key”);

Now you can call the `ConvertAsync()` method on the API instance. This method takes three parameters; the file type (“pdf”), the conversion destination type (“compress”), and a `ConvertApiFileParam`. Here’s an example of a C# code snippet that would use this function:

var convert = await convertApi.ConvertAsync(“pdf”, “compress”,

new ConvertApiFileParam(“File”, @ “C:\path\to\my_file.pdf”));

await convert.SaveFilesAsync(@ “C:\converted-files\”);

You can end with the use of `saveFilesAsync()` to save all compressed files into a specific directory. And that’s all there is to it. With these steps under your belt, compressing PDF files with C# and ConvertAPI should be a simple task for almost any project involving PDFs.

Use cases for ConvertAPI’s Compress API for C# developers

  1. Business Applications: By compressing PDFs before sending them over email or through a company’s intranet, businesses can save time and money while ensuring that files are delivered quickly and efficiently. This provides a much more streamlined workflow when dealing with large documents.
  2. Education Settings: With ConvertAPI’s Compress API for C# developers, educators can easily compress PDF documents before sharing them in the classroom or online, making it easier to access large files without degradation in quality.
  3. Government Institutions: By leveraging ConvertAPI’s Compress API, government institutions can ensure that important documents are easily transmitted over secure networks while maintaining optimal file size and performance standards.
  4. Personal Use: With ConvertAPI’s Compress API, users can easily compress large PDF files for faster loading speeds and smaller file sizes when sending documents over email or sharing them on social media.
  5. Mobile Applications: Mobile applications often require large files to be downloaded quickly. With Our Compress API for C# developers, users can easily compress PDFs to make them easier to download and access.

With the use of clear code snippets and step-by-step instructions, ConvertAPI’s Compress API makes it easy for C# developers to reduce file size on PDF documents while still maintaining optimal quality standards.

From businesses needing to send large documents over secure networks to educators sharing materials in the classroom or online – ConvertAPI’s Compress API provides a reliable solution for any project involving PDF files.

Benefits of Using our Compress API for C# Developers

Here are some benefits of using ConvertAPI’s Compress API for C# developers:

  1. Quick and easy PDF compression: The Compress API allows you to quickly and easily compress PDF documents in C#, reducing file size while preserving the original document’s quality.
  2. Improved email delivery: By compressing PDF documents before sending them over email, the Compress API helps ensure that the files will not be blocked by email servers and can be delivered promptly.
  3. Reduced hosting costs: With limited storage capacity, websites benefit from having PDFs compressed with ConvertAPI’s API integration system, allowing for faster uploads and easier access to large documents that would otherwise take up too much space on their server.
  4. Improved image quality: Compressing images within a PDF document results in improved clarity and speed when viewing online and file size reduction without compromising quality.
  5. Improved performance: By using font subsetting, C# developers can reduce the size of their PDF files by removing any unnecessary characters or glyphs which are not being used in the document. This improves performance and ensures that only the necessary content is included in the file size reduction process.
  6. Advanced optimization features: ConvertAPI’s Compress API provides advanced features for optimizing PDF structures, such as stream compression, automatic image downsampling, font removal, and re-encoding embedded objects. These features help to reduce file size without degrading the visual quality.


ConvertAPI’s Compress API lets C# developers reduce the size of PDF documents while preserving their quality. Features like stream compression, font subsetting, and automatic image downsampling provide a comprehensive solution to optimizing file sizes with the promise of not sacrificing performance or visual clarity.

If you’re looking for a good way to compress your PDFs with minimal effort and maximum results, it’s worth checking out. The company offers free credits for those who want to try out the service before committing to it.