How to test PDF generated with PDFbox

Question

I write a class that read pdf template and add some lines like:

List<PdfTextLine> textLines = pdfBankActPage.getTextLines();
    if (textLines != null) {
        for (PdfTextLine textLine : textLines) {
            contentStream.setFont(cyrillicFont, textLine.getFontSize());
            contentStream.beginText();
            contentStream.newLineAtOffset(textLine.getOffsetX(), textLine.getOffsetY());
                        contentStream.showText(textLine.getText());
            contentStream.endText();
        }
    }

My util class to store one-line info:

public class PdfTextLine {

    private Integer offsetX;
    private Integer offsetY;
    private String text;
    private Integer fontSize;

What is common approach how to test, that PDF was generated correct?

Answer 1

Since your question is lacking detail it is difficult to answer. There are different possibilities to verify that your content was added:

1. Extract the text from the PDF and check whether your text is in there

   PDFTextStripper stripper = new PDFTextStripper();
   stripper.setStartPage(pageNumber);
   stripper.setEndPage(pageNumber);
   stripper.setAddMoreFormatting(false);
   String text = stripper.getText(this.document);
   

2. Use a library like pdfcompare (which itself uses Pdfbox) to compare the pdf visually...