Recommended Installer 

Our recommended installer for both 32-bit and 64-bit Windows machines:

PDF Studio Windows Installer (for both 32-bit and 64-bit Windows)

This is an installer that comes packaged with Java 32-bit and works on all machines, 32-bit Windows and 64-bit Windows.

All functions are supported in the recommended installer.

Other Installer

We also publish a 64-bit Windows installer that comes packaged with Java 64 bit.

PDF Studio Windows 64-bit Installer

Limitation of the 64-bit installer

Note that in 64bit, PDF Studio’s Scan-to-PDF function will only show the WIA driver, not the Twain driver. This is because Twain drivers on the market, even those which are labeled as supporting 64-bit Windows, are in 32-bit mode.

Am I running 32bit or 64bit Windows?