I'd like to use the freeform drawing tool to mark up PDFs on my tablet, but I'm having a problem with drawing accuracy. For some reason Acrobat takes a split second to recognize that the user is drawing after putting the pen down. For example, rapidly drawing a large circle will produce a straight line from the initial contact point to a point that is something like 20 percent along the circle outline. This makes drawing and writing pretty much impossible.
Is there a setting that I can toggle to improve accuracy / response time? For reference, the Evermap Autoink add-in produces smooth and pressure sensitive annotations within Acrobat, so it's not a problem with my machine.
Alternatives exist, but are not cheap or have issues:
- iAnnotate PDF: near perfect but turns annotations into bitmaps
- PDF Revu is rather expensive
- AutoInk works, but does not allow the user to define custom pens beyond customizing the included 3 or 4 pens
System:
- Acrobat X (10.1.2)
- Win7 X64 Ultimate
- Lenovo X220 tablet, core i7, pen + touch