How to convert TIFF to PDF Online Free Step 1: Visit website http://tifftopdf.net/ TIFF to PDF Step 2: Select TIFF File Convert Supported File Formats: *.TIF; *.TIFF, *.JPG; *.JPEG, *.PNG, *.GIF. Step 3: Click Convert FILE To PDF, please wait TIFF file upload and download PDF file TIFF to PDF. Done!