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Convert XLSX to PDF with Java REST API

Discover how to convert XLSX to PDF using a Java REST API in this concise guide. We’ll walk you through building an XLSX‑to‑PDF converter with the Java Low Code API, following the step‑by‑step instructions below. The resulting solution runs on any Java‑compatible platform—Linux, Windows, or macOS—and the conversion is completely free.

Prerequisite

Steps to Convert XLSX to PDF with Java REST API

  1. Set the Client ID and Client Secret for the API to convert XLSX to PDF
  2. Instantiate the CellsApi class with client credentials to perform XLSX to PDF conversion
  3. Specify the source XLSX and output PDF file names and load the source XLS using a name and File object in a HashMap
  4. Create an object of the PostConvertWorkbookToPDFRequest with input HashMap
  5. Call the XLSX to PDF request method to convert XLSX to PDF with Java REST API
  6. Save the rendered PDF file stream on the local disk

The above mentioned steps entails the transformation of the file type from XLSX to PDF with Java low code API. We will commence the implementation with the configuration of the SDK and creating the CellsAPI class object. We will access the source XLSX file using a FileStream and create an instance of the PostConvertWorkbookToPDFRequest class that is further used for performing the conversion to a PDF file stream using the PostConvertWorkbookToPDF() method.

Code for XLSX to PDF Conversion in Java Low Code API

This concise example shows how to convert XLSX to PDF with the Java cloud API. Just supply the file’s access path on disk, and the Aspose.Cells REST API SDK will handle the conversion. Once the process finishes, it streams the resulting PDF back so you can download and save it locally.

In this guide we’ve mastered how to transform XLSX to PDF using the Cloud API. Ready to explore more? Check out our step‑by‑step tutorial on Convert Excel to HTML with Java REST API for the next conversion challenge.

 

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