Stamps, Signatures and File Attachments

Stamps

A stamp is a pre-built image or text badge placed on a page. Spark ships with a standard set and supports custom image stamps.

Built-in Stamps

Found under Tools → Stamps (and on the right-click Add Stamp Here context menu):

Placing a Stamp

1. Pick the stamp type.
2. Click on the page where you want the top-left to sit.
3. Drag to size (hold Shift to keep aspect ratio).
4. Release.

The stamp is a normal annotation afterwards — move, resize, rotate, recolor, delete.

Dynamic Stamps

Stamps with the "Dynamic" option enabled auto-fill:

• Date — timestamp when placed.
• Username — from your Spark profile.
• Custom text — configured in Stamp Properties.

Dynamic fields are evaluated once on placement; the resulting text is baked into the stamp.

Custom Image Stamps

To add a company logo or custom seal:

1. Tools → Stamps → Choose Stamp… → Browse.
2. Pick a PNG / JPG / SVG.
3. The image is added to your stamp library for future use.

Signatures

Two ways to create a signature annotation:

Draw Signature

1. Tools → Signatures → Draw New Signature or right-click Add Signature Here → Draw New Signature.
2. A dialog opens with a signature pad.
3. Draw your signature with mouse or pen.
4. OK. The signature is saved to your library and placed on the page.

Import Signature

1. Tools → Signatures → Upload Signature.
2. Browse to a PNG / JPG with a transparent background.
3. The image is saved and placed.

Signatures from your library can be re-used across documents.

Digital (Cryptographic) Signatures

If a PDF contains a dedicated signature field (AcroForm / PAdES), clicking it invokes the digital signature workflow — separate from the visual-only signatures above. This uses a certificate and produces a cryptographically-verifiable signature. Contact your administrator for certificate setup.

File Attachments

Embed an external file inside the PDF so it travels with the document.

1. Tools → File Attachment.
2. Click on the page where the attachment icon should appear.
3. Browse to the file to embed.
4. An icon annotation is added; the file's bytes are stored inside the PDF.

Recipients can right-click the icon → Save Attachment or Open Attachment (see 04.6).

Sound Annotations

Rarely used. Similar to file attachment but specifically for audio files. Shows a speaker icon on the page; double-click to play.

Quick Reference