Zylpha Online Bundling allows you to upload files up to 10MB on a Free licence, and up to 100MB on a SOLO or Teams licence.
If your documents exceed this limit, we recommend first attempting to compress the source documents using a compression tool. Alternatively splitting/extracting the document into smaller sections before adding to your bundle.
Guidance on splitting/extracting documents using Print to PDF can be found here: Splitting/Extracting Documents | Zylpha Online Bundling Help Centre