There is an easy way to create a (fillable) PDF form using InDesign but not quite the way you might have imagined. The way I do it is to set up the page in InDesign with checkboxes and radio buttons created using dingbats and lines beneath the fields that need to be filled. You do not have to touch InDesign's Buttons and Forms palette standard square boxes and circles from a dingbats font will do just fine. Export your document as a PDF and then open it in Adobe Acrobat Pro. (Since you use InDesign CC I am going to assume you have Acrobat Pro). In Acrobat from the menubar go to Forms Start Form Wizard and click on the Start with a PDF document option. Acrobat will automatically have converted every dingbat square to an empty checkbox circles to radio buttons and lines to fields. Better yet it will have also labelled italic (or labeled for those in the US) each field using the next to those fields. Depending on how well your page is laid out Acrobat should have done a good job already... I find with most forms I'm already 9% done at this stage. If Acrobat has added a field where there should be none just click on it and hit Delete; likewise if Acrobat has missed something you can draw out the required field from the Forms toolbar or copy-paste an existing field and rename it. If you need to get really fancy (as in custom fonts different sizes tooltips addition of currency symbols certain fields to be made mandatory addition of decimals calculation of totals custom scripts....) simply double click on the form field and make the changes in the popup window that presents itself. As a final step click on the Fields pane in the sidebar (if it isn't already open) and drag the fields up or down in the order that they need to be filled in. This will allow someone using the form to hit Tab to get to the correct next field rather than being directed all over the page. Save the form. If you want to add security features like preventing the form from being changed you can do that from the Advanced Security menu. Finally test the form in Adobe Reader to make sure all works well.