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FeaturesFormsSignature Fields

Signature Fields

Add signature capture fields to your PDF forms.

Form creation requires a Pro plan or higher. Form filling is available on all plans.

Creating Signature Fields

  1. Enter Form Mode
  2. Select Signature Field tool
  3. Draw the field where the signature should appear
  4. Set field name and properties

Field Properties

General

  • Name: Unique field identifier
  • Tooltip: Instructions for signer
  • Required: Mark as mandatory
  • Read Only: Lock after signing

Appearance

  • Border: Field outline style
  • Background: Fill color
  • Font: For typed signatures

Signature Types

When a user clicks a signature field, they can:

Draw Signature

  1. Draw using mouse or touchscreen
  2. Adjust thickness and color
  3. Click Apply

Type Signature

  1. Type your name
  2. Choose a signature font style
  3. Click Apply

Upload Image

  1. Upload a signature image
  2. Position and scale
  3. Click Apply

Certificate-Based

For digital signatures:

  1. Select a digital certificate
  2. Enter certificate password
  3. Sign with cryptographic signature

Signature Appearance

Customize what appears when signed:

  • Name: Signer’s name
  • Date: Signing date
  • Location: Signing location
  • Reason: Reason for signing
  • Logo: Company logo
  • Graphic: Signature image

Lock After Signing

Prevent changes after signing:

  1. Open signature field properties
  2. Go to Signed tab
  3. Select lock behavior:
    • Lock specific fields
    • Lock all fields
    • No lock

Validation

Verify digital signatures:

  1. Click the signature field
  2. View signature status:
    • Valid: Signature verified
    • Invalid: Signature failed validation
    • Unknown: Cannot verify

Signature Details

View signature information:

  • Signer identity
  • Signing date and time
  • Certificate details
  • Document changes since signing

Multiple Signatures

Add multiple signature fields:

  • Sequential signing (one after another)
  • Parallel signing (any order)
  • Witness signatures

Tips

  • Place signature fields clearly
  • Add instructions in tooltips
  • Consider using required field validation
  • Test signature workflows before distribution
  • Use digital signatures for legal documents

Next Steps

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