How to add a stamp to a PDF file Choose or drop the PDF file to which you would like to add a stamp. Enter the text for your stamp. Select your preferences for font, size, rotation, opacity and color. Click on 'Add stamp' below. Download the PDF file with the added page stamp. Edit Stamp Paper. pdfFiller is the best quality online PDF editor and form builder -it's fast, secure and easy to use. Edit, sign, fax and print documents ... Open Stamp Pdf. pdfFiller is the best quality online PDF editor and form builder -it's fast, secure and easy to use. Edit, sign, fax and print documents ... Free, no watermarks or registration. Edit PDF files for free. Fill & sign PDFs. Change existing text and links. Find & replace text. Whiteout. Add image or text watermark to PDF documents. Online, no installation or registration required. It's free, quick and easy to use. Free, no watermarks or registration. Fill & Sign PDF files for free. Fill out PDF forms. Add signature to PDF. Free online PDF editor to edit documents in your browser. Modify a PDF by adding text, images, comments, and annotations. Add watermark into a PDF. Stamp an image or text over your PDF in seconds. Choose the typography, transparency and position. Upload your file and transform ... Your mouse will turn into a light blue box for you to Left mouse click (and hold) > Drag a box > Release mouse button (This is where you want the date stamp ... Sign PDF or document files, create forms and edit PDFs online for free! Apply ... ...easily fill out a unique copy of it as many times as you need. ...send ...