How to Insert a Scanned Signature Into a PDF
You can insert a scanned signature into a PDF by inserting it into the "Stamps" feature. A PDF is a form of sending text and images in a readable and editable format if configured that way. If you need to consistently send signatures, it makes sense to save it to the "Stamps" feature. If you want to insert a scanned signature into a PDF, you can do so in a few steps.
Launch an image editor such as Adobe Photoshop and open the scanned signature through Photoshop or another image editor.
Use the eraser to erase the white background, and then click "Save As." Select "Photoshop PDF" as the file type and select "Save Transparency" and "Image Interpolation." Click "OK."
Launch Adobe Acrobat. Click "Tools," "Comment & Markup," and then click "Stamps."
Click "Show Stamps Palette," and then click "Import." Select your signature file to import and type a name for it. Click "OK."
Launch the PDF file where you want to insert your signature. Click "Tools," "Comments & Markups," and then "Stamps." Click "Show Stamps Palette." Click and drag your signature stamp to the location you want it placed. Click "Save."