StepDownload the filled-out PDF to your device Here are the steps to fill out PDF forms on Mac Preview: StepOpen the Preview app on your Mac and select the PDF form from your device. Click on the Open File button and select the file from your device. Click a field in the form, then type your text. Fillable forms are shown with blue boxes that you can click and enter information How to fill out a PDF online: StepSelect your PDF in our free online PDF Filler tool. Click File > by Sakshi Garg. Aut