Q: Where can I find jPDFImages javadoc API?

A: You can find the API specification for the latest version of our library jPDFImages on our website at this link. jPDFImages is a java library to convert PDF documents to images and to create PDF documents from images in java.

A Java program that converts a TIFF file into a PDF document using Qoppa's library Java PDF image library jPDFImages.

http://www.qoppa.com/pdfimages/guide/sourcesamples/TIFFToPDF.java

A Java program that gets images from a PDF (one image per page) as Java BufferedImage objects using Qoppa's library jPDFImages. Once images are available as BufferedImage objects, they can easily be modified before saving using Java Graphics2D. For instance here a watermark is applied to the images.

http://www.qoppa.com/pdfimages/guide/sourcesamples/PDFToBufferedImages.java

If your goal is only to add a watermark, you may also look at this simple sample:
http://www.qoppa.com/pdfimages/guide/sourcesamples/Watermark.java

 A Java program to convert a PDF file to multiple JPEG files using Qoppa's library Java pdf image library jPDFImages.

http://www.qoppa.com/pdfimages/guide/sourcesamples/PDFToJPEGs.java

 A Java program to convert a PDF file to a single, multi-page TIFF file using Qoppa's library Java PDF image library jPDFImages.

http://www.qoppa.com/pdfimages/guide/sourcesamples/PDFToTIFF.java