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In accordance with our rebranding policy effective from May, 2022, "Right PDF" has replaced Gaaiho as the brand name.

Software Maintenance Service

For Right PDF Perpetual License only


The Software Maintenance Services (SMS) provides an economical way to receive product upgrades and get technical support. It does not only cover all updates, upgrades and technical support during the timeframe selected (starting from the date of purchase), but is also a cost-effective way to upgrade product instead of buying a new license. You may keep your software up-to-date in subsequent years by renewing your SMS subscription.

  • Definition on Update and Upgrade ZEON’s definition of "upgrade" means a rise in the major version number, e.g. v6.5 to v7.0, whereas "update" means a rise in the minor version number, e.g. v7.1 to v7.5. In normal circumstances, an upgrade denotes considerable improvements in UI, performance, and functionality, whereas the purpose of an update is to provide bug fixes.
  • Upgrade and Support within SMS Coverage Perpetual license does not have an expiration date. However, free upgrade can only be obtained during the valid SMS period and user may go to Right PDF website and download new version. Priority technical support is also given to the subscribers.
  • Subscribing to SMS
    • A SMS option is available during the purchase process.
    • SMS fee has options for one, two or three years. Price table follows:

      1 year30% of the license total
      2 years55% of the license total
      3 years75% of the license total
  • Advantages SMS entitles Licensees to the following advantages.
    • New Product Versions: Subscribers will automatically have access to the download area on the Right PDF Website through their account, where new, up-to-date product release versions will be available. Subscribers are advised to deactivate the product before installing the new version.
    • License Serial Number: Within SMS coverage, the user can stick to the original serial number without having to re-activate the copies one by one. The original serial number will remain valid and can be used to activate the new version.
    • Technical Support: If the software does not function according to the documentation or if there is a technical problem, the user can contact Right PDF support team for help. The support tickets or requests submitted by subscribers to SMS will be given higher priority than those submitted by regular users.
  • Renewal of SMS The user may renew SMS on condition that the product has been upgraded under the coverage of a previous SMS plan. If the SMS has expired, the serial number will no longer be eligible for upgrade and high priority technical support will revert to standard priority.
  • Limitation The SMS does not include programming support or support unrelated to product fault. For additional engineering support beyond SMS, a NRE (Non-Recurring Engineering) fee shall be charged. Please contact sales@rightpdf.com for more information
  • Added Copies All copies purchased/added to a license within the SMS coverage shall pay a prorated fee for each new copy.
  • Requesting Support Any subscriber to SMS who encounters problems with Right PDF products shall follow the instruction below.
    • Please contact us and describe the problem in detail. For conversion-related issues, attaching the original file and the converted file would shorten the time needed for troubleshooting; if the problem is related to connection, signing in or registration, please attach the log file (accessible by clicking the “View Log” button in “License Information” dialog box).
    • If it turns out to be a product error, ZEON shall try to deliver a patch available with the next build release.
    • If ZEON cannot be certain of the problem from the materials at hand, ZEON shall offer free remote login service for investigation.
    • If the problem is not related to our software, ZEON shall offer limited but reasonable advice and consultation service.
  • Condition without SMS
    • New Version Release within 30 Days: If any new version of the product is released within 30 days from the purchase date, licensee will be entitled to the new version at no additional cost.
    • New Versions after 30 Days: After 30 days from the date of purchase, licensee’s free access to new Major versions upgrade will be cancelled.
    • Technical Support: Technical support is provided in the first 30 days after date of purchase. Any support request raised after the 30-day span will be treated with standard priority and the response time will vary in accordance with ZEON’s support resources and volume of support requests.
    • Late Subscription: SMS remains an option after the user purchases the license. However, a fee considerably higher would be charged. Please contact sales@rightpdf.com for more information.
    • License Code: If the user subscribes to SMS after the purchase, a new license code will be generated, replacing the old one.

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Last updated: Feb 15 2022 

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