Q:
The
issue we are seeing is the default behavior of the PDF viewer will
resize a font to fill a widget. This causes font sizes to be
inconsistent. In particular, the font size increases to fill the widget space.
Is there a way to set this behavior so that auto sizing does not happen?------------------------------------------------------------
A:
This behavior is actually controlled by the PDF file
creator, and any text field with a font size of zero means that the
content should be scaled to fit. PDFviewCtrl is just following the field
settings.
We don't currently expose any functions
that will do this for you. Instead, you would need to modify, or
pre-process the PDF, using PDFNet.
You may want to use
our COSEdit tool that comes with the desktop version of PDFNet (just
download a trial version). First look for the entry trailer/Root/Acroform/DA. This is an optional entry that sets the default font and text size for fields. The rest of the fields are under trailer/Root/Acroform/Fields, and they can have their own DA entries.
So, programmatically, you would need first call PDFDoc::GetAcroForm and then replace the DA entry, with a string like this "/Helv 12 Tf 0 1 0 rg" which will set the default field text to Helvetica 12 pt font, and red color.
Then, using the PDFDoc::GetFieldIterator, you would go through each Field entry, call Field::GetSDFObj and then delete the DA entry
if present. Though, maybe you don't for all fields, or just some?
CosEdit can help you figure out which fields you want to affect with
these changes.
See the follow pages for details on how to do all this.
https://groups.google.com/forum/?fromgroups#!searchin/pdfnet-sdk/field$20font$20size/pdfnet-sdk/n43OZqxaFfM/5N5dX6S0bdwJ
https://groups.google.com/forum/?fromgroups#!searchin/pdfnet-sdk/field$20font$20size/pdfnet-sdk/bNO73SNojEM/4lS6ZZVRMAoJ
http://www.pdftron.com/pdfnet/intro.html#low_level_apihttp://www.pdftron.com/pdfnet/intro.html#forms
http://www.pdftron.com/pdfnet/mobile/iOSHTMLDoc/classes.html