Postmarkr

Postmarkr lets businesses send physical letters through USPS without printing, folding, stuffing, or buying postage. Upload a finished PDF, verify the recipient address, review a true-to-print preview and exact price, then submit one letter or a batch for printing and mailing. For higher volume, import a recipient CSV or use a reusable template and mail merge.\n\nPostmarkr currently supports U.S. First-Class letters with black-and-white or color, single- or double-sided printing. Each letter has processing status and available USPS mail-stream scan updates. Pay per piece with no subscription or monthly minimum; visit Postmarkr's pricing page for current pricing.