AcroOpenEx opens the PDF file, creates a new document in memory, copies all pages from the file to the new document and then closes the file. Now the file can be updated by pdfTeX.
When the file is viewed again the plugin replaces the pages in the document previously created in memory. The current page, scroll position and zoom are preserved!
To install the plugin copy AcroOpenEx.api to the Acrobat plugin directory (e.g., C:\Program Files\Adobe\Acrobat X.X\Acrobat\plug_ins).
· Acrobat Standard or Professional edition