Q: I switch from PDF Studio 64bit to 32bit version, I sometimes get a “maximum heap size” error when running PDF Studio. What does this mean and how can I solve this issue?

A: When you switch from 64bit to 32bit version, sometimes it show the error “The JVM could not be started. The maximum heap size (-Xmx) might be too large”. It is due the current allocated memory exceeded the maximum memory on a 32bit application.

You can follow the following instructions to allocate the memory:

  1. Close / Exit PDF Studio
  2. Open the file called pdfstudio2021.vmoptions located in PDF Studio installation directory: C:\Program Files\PDFStudio2021 (Some Windows versions will require you to start Notepad as an administrator and open the file from there to be able to save it. If that does not work copy the file to your desktop, then edit the file, then copy it back to the installation folder)
  3. Change -Xmx[XXX]m (where [XXX] is the current allocated memory) with -Xmx1400m to increase the allocation to 1400MB, for instance
  4. Save the file
  5. Launch PDF Studio