How to edit corp boxes and clip paths?

Q: I'm a pdftron fan. I have a pdf file that is created using a third
party component. This componnet is buggy and some words cannot be seen
(i.e. are cropped). I can select them in acrobat and paste it in
notepad but I cannot see them completely. How can I use PDFNet SDK to
correct crop boxes (Image file attached).
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A:
You can modify PDF page crop and media box as illustrated in RectTest
sample project (http://www.pdftron.com/net/samplecode/RectTest.cs, also
http://www.pdftron.com/net/usermanual.html#media_box)

If the content is cropped using the clip path, you will need to edit
the page (e.g. as illustrated in ElementEdit sample project -
http://www.pdftron.com/net/samplecode.html#ElementEdit) and modify the
clipping path (i.e. the element of type e_path for which
element.IsClippingPath() returns true) or omit it during the copy to
the new page.