Stamp Affixing
The Personal Touch. At Scale.
Machine application of live postage stamps to your mail pieces — adding a personal, hand-mailed look at production scale.
What Is Stamp Affixing?
Stamp affixing machines pick individual postage stamps from a roll or sheet and apply them to mail pieces using water-activated adhesive. The result is a piece that looks like it was stamped by hand — commanding more attention in the mailbox and improving open rates compared to metered or indicia mail.
Stamp affixing is the automated process of applying live USPS postage stamps to mail pieces using a mechanical affixing machine. A stamp-affixed piece looks personal and hand-mailed — which can dramatically improve open rates for fundraising appeals, political mail, and high-value prospect mailings. Catdi Printing offers stamp affixing as part of our full mail processing workflow.
Key Benefits
Why Catdi Printing clients choose Stamp Affixing as part of their mail production workflow.
Higher Open Rates
Live stamps signal personal correspondence, not bulk mail — recipients open stamp-affixed pieces at significantly higher rates.
Ideal for Fundraising
Nonprofit fundraising mail with live stamps consistently outperforms metered mail in response rate studies.
Political & Advocacy Mail
Stamp-affixed political mail commands attention and conveys genuine personal outreach to voters.
Automated at Scale
Stamp affixing machines apply stamps at thousands of pieces per hour — no manual labor required.
Multiple Stamp Denominations
We apply first-class Forever stamps and standard denominations — you choose based on your postage class.
Works with Any Envelope Size
Stamp affixing is compatible with #10 envelopes, 6×9 catalogs, and most standard mail formats.
Who Uses Stamp Affixing?
Common applications and industries that rely on stamp affixing as part of their direct mail workflow.
Nonprofit Fundraising
Affixing a live stamp to a fundraising appeal envelope increases open rates and average gift size.
Political Campaigns
Voter contact mail with live stamps looks personal and important, improving read rates.
High-Value Prospect Mail
For premium B2B or luxury consumer prospects, a stamp signals a hand-mailed, personal piece.
Re-Engagement Campaigns
Win back lapsed customers with stamp-affixed personal letters that don't look like bulk mail.
Executive Appeal Letters
CEO or executive-signed appeal letters with live stamps create a premium direct mail experience.
Survey & Research Mail
Survey mailers with stamps achieve higher response rates than metered equivalents.
Ready to Add Stamp Affixing to Your Campaign?
Catdi Printing handles every step of your mail production in-house. Get a custom quote today.
Frequently Asked Questions
Related Mail Processing Services
Serving Communities Nationwide
Printing and direct mail services available across Texas and the United States