16.0.1

This 16.0.1 version introduces a new export format: ALTO XML, standing for Analyzed Layout and Text Object.

This open XML schema aims at providing a standardized way of describing OCR and layout information for digitized material. Go to https://www.loc.gov/standards/alto for more details.

This new format is added as an extra export type: IDRS_EXPORT_TYPE::IDRS_EXPORT_FORMAT_XML_ALTO (C++) or ExportType.XmlAlto (.NET). It can therefore be provided as an argument of CExport class' constructor.

Also, a new member is added to class CExport in order to allow appending the export of a new page to an existing ALTO XML. You can set it via method CExport::SetAppendMode() (C++) or property CExport.AppendMode (.NET).

The SDK is now able to retrieve the location of graphical zones and segments when loading a PDF’s content.

PDF graphical zones loading is performed whenever text loading is also requested; to reflect this, the methods CImageLoadOptionsPdf::Get/SetLoadTextContent (C++) and property CImageLoadOptionsPdf.LoadTextContent (.NET) are renamed to CImageLoadOptionsPdf::Get/SetLoadPageContent / CImageLoadOptionsPdf.LoadPageContent respectively.

Now you can select at which resolution a PDF input page should be rasterized. This can be useful to fine-tune output size (smaller resolution) or maximize quality (higher resolution).

To do so, use method CImageLoadOptionsPdf::SetLoadingResolution() (C++) or property CImageLoadOptionsPdf.LoadingResolution (.NET).

The default value is 300 dpi, as used in the previous version of the SDK; it ensures the best compromise between size and quality.