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Form Filling



Form Filler

Infix can be used to quickly fill-in basic PDF forms. These are simply PDF versions of traditional paper forms that would otherwise have to be printed out, filled-in by hand then scanned back into the computer.

Using Infix you can speed up the entire process while keeping the form entirely computerised and available to email to a third party.

Infix Form Filler presents a simplified interface for the sole purpose of filling-in forms. It is a free version of Infix that always applies a very small watermark to the bottom of each edited page.

Open a PDF to be filled-in.

If your PDF has interactive elements (not just a simple form) you will be asked if you want to remove them.

If you leave them in and fill-out the form, the interactive elements will obscure your answers when viewed in other PDF viewers.

Select the Text Plus tool.

As you move the mouse over the form, Infix will highlight what it thinks are the areas to fill-in.

Click on a highlighted area to begin typing into it.

Hold the Control key and click to ignore Infix's guess, and simply create a small, single-line text box.



If Infix thinks the item under the mouse looks like a check-box, it changes the cursor to a pointing hand.

Click to mark the box with an X.

Click again to remove the X.

Hold the Control key and click to ignore the check-box and create a small, single- line text box.


  • Use the Text Plus tool to create new text boxes in any kind of PDF not just form-style documents.
  • The Text Plus tool does not edit existing text - only text created by the tool either during this session or from when the PDF was last edited.
  • Since Infix is making a guess as the shape and location of editable areas, it may sometimes arrive at an incorrect decision. In this case, hold down Control as you click to ignore the guess.
  • Filled-in forms are normal PDFs that can be viewed and printed by any PDF viewing application.