Using Additional ParametersLearn how to utilize Additional Parameters field on a Template to further customize your merged documents.Aug 24, 2026Knowledge
InformationArticle BodyOverview The Additional Parameters field on the Template object in MergeUp introduces a powerful avenue for template customization. This JSON-formatted field allows users to specify various settings that influence the output and behavior of document generation processes. Syntax { "parameterName": value } Parameters useOldPdfConversion Description Controls which PDF conversion process the Template uses. Set this parameter to true to use the legacy PDF conversion process. Set it to false, or omit it, to use the new PDF conversion process, which is designed to provide much more reliable PDF generation. Usage { "useOldPdfConversion": true|false } Notes The legacy PDF conversion process is available to support Templates that have not yet transitioned.We strongly recommend switching to the new PDF conversion process for much more reliable PDF generation. Test each Template with the new process, and then set this parameter to false or remove it. Next Steps Generate and review a PDF from the Template after changing this parameter to confirm that the output meets your requirements.TitleUsing Additional ParametersURL NameUsing-Additional-Parameters