Flattening PDFs before you send them

“Flatten” usually means baking comments, form values, or vector stacks into a simpler visual result. Recipients stop seeing your sticky notes as editable objects — they see something closer to a printed page.

When flattening is the polite choice

• You want signatures or highlights to survive email clients that strip annotations.
• You are done collaborating and want a read-only handoff.
• Your counterparty’s viewer is old or picky about layers.

How scan-style export differs

A tool like ScannedLook goes further into appearance: grain, skew, and bed-edge framing mimic a hardware scanner. That can flatten intent in a visual sense even when the underlying PDF structure is new. Use it when the goal is look-and-feel, not only collapsing comment threads.

Practical tip

Always open your exported file in the same class of viewer your recipient uses. If something looks wrong, adjust resolution or contrast before you resend — fewer “can you resend?” loops.