It means that you are indeed viewing the PDF document in Adobe Reader for iOS (not in other app like Apple iBooks or Mail preview). However, Adobe Reader for iOS indicates that the PDF document is not a fillable form.
Here are possible reasons why it is not a fillable form in Adobe Reader for iOS.
- The PDF document is a special type of PDF form (e.g. a static or dynamic XFA form created with Adobe LiveCycle).
- The PDF document does not contain real form fields. It could be a scanned PDF containing images of text, rectangles, check boxes, etc.
If you would like to find out the reason why it's not fillable in Adobe Reader for iOS, please send the PDF document as an email attachment to adobereader-ios@adobe.com. Please include the link to this forum post (https://forums.adobe.com/thread/1514965) in your email for reference. We need to look at the actual PDF document to determine the cause of the problem.
You can check if the form fields are highlighted in light blue in the desktop version of Adobe Acrobat Pro or Standard or Adobe Reader.
Thank you.