In case you are wondering how you can create a Create fillable pdf files free file with fillable form, here is one easy way you can do so, and it is free of charge. What are you looking for?
PDF is a very popular format for static document that doesn’t require changes. You may also have seen PDF files that come with form that you can fill in. Open Libre Writer and create your document. This will add the Form Control toolbar to your Libre Writer interface.
This toolbar allows you to drag and drop the various form fields to the document. You can size it to be an one-line input field or a multi-lines text box. This will bring up the Control window. This is where you can edit the meta-data of the text box, such as its name, label field, max length etc. You can also add events such as changing text on mouseover, focus, keypressed etc.