How to change the DPI / Resolution of the PDF page view in Qoppa’s PDF component

Q: When opening a PDF document in Qoppa’s PDF component, jPDFViewer, it seems that the 100% magnification is not exactly the same as the 100% view in Adobe Reader.

A: This is a preference that can be set in Adobe Acrobat and Adobe Reader under Edit > Preferences > Page Display.

By default, jPDFViewer, jPDFNotes and jPDFViewer use the resolution reported by the operating system, 96 pixels per inch.

To change the resolution to 110 in Qoppa’s PDF components, make the following call:

pdfBean.setScreenResolution(110);