When a PDF form is opened in eCopy PDF Pro Office or Power PDF for editing, the Set Tab Order options are not available. The button and menu options are greyed out.
The Tab Order for the document is set to Use Document Structure.
1. Open the document with eCopy PDF Pro Office (or Power PDF) 2. Expand the Pages pane 3. Highlight the page(s) 4. Right-click on the page(s) > Page Properties 5. Select Unspecified > Close