Add Page Numbers in PDF using Java REST API

This article explains how to add PDF page numbers using Java REST API, guiding you through automatically inserting a page number stamp in a PDF document with the help of the Aspose PDF Cloud SDK for Java and showing how to customize its appearance via the library’s exposed properties.

Prerequisite

Steps to Add Page No to PDF using Java REST Interface

  1. Initialize the PdfApi client with ClientKey and ClientId
  2. Set the inputPdf and outputPdf file names for use in the application
  3. Read and upload the input PDF file to the Cloud storage
  4. Configure PageNumberStamp with margins, alignment, and starting number
  5. Call the PostDocumentPageNumberStamps() method to apply numbering to all pages
  6. Download the updated PDF with page numbers and save it as a PDF

These steps summarize how to insert Page No in PDF using Java RESTful Service. Upload the source PDF file to the Cloud storage, create a pageNumberStamp object and set the parameters of the stamp, and call the PostDocumentPageNumberStamps() method to insert Page Number on all the pages. Finally, if no error is raised, download the updated PDF file in the Cloud and save on the disk.

Code to Insert Page Number in PDF using Java-based API

This code demonstrates the process to add Page No in PDF using Java Low Code API. You can set other stamp properties, such as opacity, rotate the page number stamp, and adjust other indentation parameters. The rotation enum supports 0, 90, 180, and 270 degrees.

This article has guided us to add page numbers in an existing PDF file. To convert file format from GIF to PDF, refer to the article Convert GIF to PDF using Java REST API and see the GIF format information.

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