If you suspect this is the case try these general steps.

How to see hidden text in pdf. To bring up the full properties for the text field double-click on the text field or right-click and select Properties from the menu. In the example file linked below one of the examples uses a Rectangle annotation as the background for a group of fields. We have a PDF document below where some text is hidden covered with the white box.

Internal PDFs can allow this hidden text to appear for internal use. In MS Word this is done by selecting File -Print-Options and selecting the Hidden Text Checkbox under section Include with Document. Both the annotation and the fields are shown and hidden.

Provided you are still viewing the document in Print Layout view you should be able to see any text boxes. See Figure 1 Figure 1. How to e Redact or Hide Text in PDF Document by using adobe acrobat pro-2017.

Sometimes an author will hide rows or columns to conceal information they contain. Any previous fields I have typed text into is hidden invisible as soon as I click on another field. You wont know until you unhide them.

The text can be hidden by making it nearly invisible turning down its opacity to below 5 or using certain colors and filters on it. Although the text is undiscernable to the naked eye it is. That hidden text is absolutely not in the PDF file and there is nothing you can do with the PDF file itself to retrieve that textNote that this is very different from having text in an Office document covered by some other graphic object in which case you might be able to retrieve such text.

Once this is selected and converted to PDF using Adobe the Hidden Text. Also make this field Read-Only and Hidden. Another option would be to check the text color or transparency of the text objects to see if they a draw or not.