PDF Stamper License Expiry or File Corrupt Error by Tips and Tricks HQ Support Portal › Forums › WP PDF Stamper › WP PDF Stamper F.A.Q/Instructions › PDF Stamper License Expiry or File Corrupt Error Tagged: pdf stamper license expiry, stamper file corrupt This topic has 10 replies, 6 voices, and was last updated 11 years, 8 months ago by christophe. You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In