| PrepareViewing | Scroll | 
REST URL (POST) https://tenant.thereforeonline.com/theservice/v0001/restun/PrepareViewing
SOAP Action (POST) http://schemas.therefore.net/webservices/interop/v0001/messages/IThereforeService/PrepareViewing
Prepares viewing/conversion of a document to html5
Input Message: http://schemas.therefore.net/webservices/interop/v0001/messages/IThereforeService/PrepareViewing
| Element Name | Element Type | Restrictions | Description | 
| â– parameters | 
 | 
 | |
| â–¡ DocNo | xs:int | nillable | The number of the document to be viewed or 0 if an newly uploaded document should be viewed | 
| â–¡ VersionNo | xs:int | nillable | The version of the document to be viewed or 0 if an newly uploaded document should be viewed | 
| â–¡ UploadSessionId | xs:string | nillable GUID string template: [\da-fA-F]{8}-[\da-fA-F]{4}-[\da-fA-F]{4}-[\da-fA-F]{4}-[\da-fA-F]{12} | The upload session guid to be viewed or null/undefined if an existing document should be viewed | 
Output Message: http://schemas.therefore.net/webservices/interop/v0001/messages/IThereforeService/PrepareViewingResponse
| Element Name | Element Type | Restrictions | Description | 
| â– parameters | 
 | 
 | |
| â–¡ Streams | 
 | nillable | List of file streams in that document. | 
| ≡ WSViewingPagesStream | 
 | list nillable | |
| â–¡ FilenName | xs:string | nillable | The original name of the file. | 
| â– FileSize | xs:long | 
 | The file size in bytes. | 
| â– PageCount | xs:int | 
 | The amount of pages in this file. | 
Legend:
| â– | Not nillable element. | 
| â–¡ | Nillable element. | 
| ≡ | List of elements. | 
| Bold | Mandatory element. |