Thank you for your interest in Aspose.Editor.
Fields as document elements are not currently supported in the editor. However, due to lossless editing technology we use, document fields are preserved in open-edit-save cycle until user deletes them manually. While editing, unknowns (any item which is not supported yet) are drawn as icons - red squares with the cross, so the user can see their location, delete them or keep them intact.
If you have Aspose.Words product at your disposal then it’s even possible to print documents containing such unsupported items using Aspose.Words rendering capabilities.
As regards mail merge feature, we have no plans to implement it in the editor. Performing mail merge is one of the primary usage scenarios of Aspose.Words. It provides rich API for fast server-side non-visual document processing and converting documents among many formats. Aspose.Editor also exposes rich API for document processing but it is designed with visual editing in mind and is not suitable for ultra-fast server-side documents processing. Off course, Aspose.Editor is fast enough for client-server application, as the matter of fact it is faster in times on many operations then MS Word Automation, but Aspose.Words have much greater performance and may process a huge number of pages per second server-side due to its specific non-visual design.
You can obtain documents from the server, get them processed by user in Aspose.Editor, send them back, and then mail-merge them with Aspose.Words. So Aspose.Editor and Aspose.Words do not replace but complement each other in the document processing pipeline.
Dmitry Burov
Lead Developer,
Aspose Auckland Team