Add Signature to PDF Online

Everything You Need to Know About Adding Signatures to PDFs

Whether you are finalizing a freelance agreement, executing a real estate transaction, or approving an internal memo, placing your signature onto a PDF document should be simple, rapid, and secure. Below is an overview of methods and recommendations for creating clean electronic signatures.

Method 1: Drawing a Handwritten Digital Signature

Drawing your signature gives you the closest match to a pen-on-paper signature. You can use:

• Touchscreens: On smartphones and tablets (iPhone, iPad, Android), you can draw directly using your index finger or an Apple Pencil / stylus.
• Trackpads & Mice: On laptops and desktop computers, simply click and drag to trace your signature.

Our drawing tool includes real-time stroke smoothing to prevent jagged lines, giving your signature an authentic fluid look.

Method 2: Typing a Cursive Signature

If you prefer a clean and uniform aesthetic, typing your name into our text-to-signature tool is the fastest choice. You can preview your name across five distinct calligraphic typefaces and select the one that fits your personal taste.

Method 3: Uploading an Existing Signature Image

If you already have a physical signature you love:

1. Sign a blank white sheet of paper with dark black or blue ink.
2. Take a well-lit photo or scan of the signature.
3. Upload the image into SignPdfDoc.
4. Our intelligent transparency filter will eliminate the background paper texture, leaving only the ink strokes to place cleanly on your document.