Save annotations and insert them on next load

Hello,

I managed to save a rectangle annotation. I don't want to save the annotation to the PDF instead I want to save it to a database.

How can I load all annotations from database and insert them into the PDF after opening the PDF file?

1. Open PDF
2. Load annotations for PDF
3. Load thumbnails

for example,
I have a saved rectangle (x1, y1, x2, y2) on page 6. How do I tell the library to add the rectangle to page 6 if I'm currently at page 0 (front page)?

Also, can I save text highlights and notes externally as well?

Have you had any resolve on this? Im also trying to load saved rectangle.

for rectangle annotation:
save: record pageno and rect in PDF coordinate to DB.
load: load rect then, convert to DIB coordinate.
for markup(highlight and others) annotation:
save: record pageno and 2 points(start and end) in PDF coordinate.
load: load 2 points then, convert to DIB coordinate.

I already have the loaded coordinates from the db. Is there a method to generate this DIB coordinate object?

Also when I have this DIB coordinate is there a method available i can pass this into to draw this hihglight on the required page?

Regards

PDFVPage vpage = PDFView.vGetPage(pageno);
dibx = vpage.ToDIBX(pdfx);
diby = vpage.ToDIBY(pdfy);
viewx = vpage.GetVX(PDFView.vGetX()) + dibx;
viewy = vpage.GetVY(PDFView.vGetY()) + diby;