Deletes the specified page from a multi-page file, if the format supports delete operations.
- (BOOL)deletePageInFile:(NSString *)file page:(NSInteger)page error:(NSError **)error
A String containing the name of the file from which to delete the page.
1-based index of the page to delete. Use -1 to delete the last page. Use 1 to delete the first page.
The following file formats support delete operations:
For an example, refer to Save.
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