Subset fonts in existing PDF files

[Support]

Q:

 

I receive some PDF files with massive fonts (e.g. Arial Unicode MS) which bloat the file size by >20 MB.

Can I use PDFTron Optimizer (http://www.pdftron.com/pdfnet/samplecode.html#Optimizer) to shrink these files? I would like only to keep the glyphs that are acutally used in the document.

 

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A:

 

Yup, you can do this with SubsetFonts(true) in Optimizer.TextSettings.

 

This is shown in the following code snippet (in VB other languages are basically the same apart from syntax differences):

 

…

Dim optTextsettings As New Optimizer.TextSettings

optTextsettings.SubsetFonts(True)

optTextsettings.EmbedFonts(False)

 

Dim optSettings As New Optimizer.OptimizerSettings

optSettings.SetTextSettings(optTextsettings)

 

Optimizer.Optimize(doc, optSettings)

 

…

doc.Save(…)