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Add Checkbox in PDF with Java REST API

This short tutorial shows you how to PDF and Java developers can automatically add a checkbox to a PDF document using the Aspose.PDF Cloud REST API. By leveraging the Java SDK you can set the exact position of the checkbox on any page, upload the source file, and retrieve the updated PDF—all without installing third‑party tools.

Prerequisite

Steps to Add Checkbox to PDF with Java REST API

  1. Configure the PdfApi instance using your client ID and client secret.
  2. Create a checkbox field by specifying its name, type, default value, and rectangular boundary.
  3. Upload the source PDF file to Aspose Cloud storage with a chosen file name.
  4. Call the PostCreateField endpoint to place the checkbox on the desired page of the uploaded PDF.
  5. Download the resulting PDF file, which now contains the checked box.

These steps illustrate how to place a tick mark in a PDF using the Java Low‑Code API. Define the checkbox field (type, default value, and rectangle that describes its position and size), upload the PDF, and invoke PostCreateField() with the file name, page number, and field definition.

Code to Insert Check Mark in PDF with Java REST API

The sample demonstrates how to add a checkbox to a PDF via the Java REST API. FieldType.Boolean creates the checkbox, and the rectangle specifies the start and end coordinates (in points) relative to the bottom‑left corner of the page. PostCreateField() requires the uploaded file name, the target page number, and the field object.

For related operations, such as adding a new page to a PDF, see the article Add new page in PDF with Java REST API.

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