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Convert JPG to PDF Format with Java REST API

JPG PDF conversion using the Java REST API is straightforward and efficient. This quick tutorial shows you how to transform a JPEG image (or a collection of images) into a PDF document where each image occupies its own page, leveraging the Aspose.PDF Cloud Java SDK. For more details on the file types, see the JPG file info and PDF file info pages.

Prerequisite

Steps to Convert a JPG to a PDF with Java REST Interface

  1. Configure the PdfApi class object using the App key and SID for converting JPG images to PDF
  2. Upload the image(s) to the Cloud storage with unique names
  3. Create the ImageTemplate objects for each image
  4. Create the list of ImageTemplate objects
  5. Create the ImageTemplatesRequest object using the images list and IsOCR flag
  6. Convert all the images to a PDF using the PutImageInStorageToPdf() method
  7. Download the PDF with an image on each page

These steps summarize how to convert Image to PDF with Java RESTful Service. Begin by uploading the single or multiple images to Cloud storage, creating the ImageTemplate class objects for all the images, and assembling a list of these objects. Then, build an ImageTemplatesRequest using that list and call PutImageInStorageToPdf() to generate the PDF.

Code for JPG to PDF Document Converter with Java-based API

The sample demonstrates a picture‑to‑PDF converter with the Java Low Code API. To convert a single image, follow the same workflow but upload only that image and create a list containing a single ImageTemplate. Setting the IsOCR flag to true allows you to specify the OCRLangs property (e.g., "eng").

If you need to insert the image onto an existing page alongside other content, refer to the article on Insert Image into PDF with Java REST API.

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