SDK :How to check if document page is Empty ( has image or text ) ?

exporter.PageFormat = DocumentPageFormat.Tiff; for (int x=1; x<=docInfo.PageCount;x++) { var pagePath = pagesFolder + $"\\{x}.tiff"; var thumPath= thumFolder+ $"\\{x}.tiff"; // exportpage as a tiff image using (FileStream Pfs = File.OpenWrite(pagePath)) { exporter.ExportPage(docInfo, x, Pfs); listPages.Add(pagePath); } // Export thumbnail for page using (FileStream Tfs = File.OpenWrite(thumPath)) { exporter.ExportThumbnail(docInfo, x, Tfs); listthums.Add(thumPath); }

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replied on August 29, 2023 • Show version history

The PageInfo object has built-in boolean values for HasImage, HasText, and HasThumbnail.

Something worth noting is that Thumbnails are mostly for the UI side, so it is possible to have a valid page image with no thumbnail. For example, with Replicate Entry in Workflow you can copy an entry without thumbnails meaning they won't be generated until someone accesses the document.

I'm not sure if you're using a standard for loop because you need the index for something else, but you can use a foreach loop in combination with the GetPageInfos method of the DocumentInfo object, then you can check for pages/text inside the loop.

The benefit of this approach is that the PageInfo object is readily available for each iteration so you can easily access its methods and properties, like HasImage or PageNumber.

For example,

foreach (PageInfo page in docInfo.GetPageInfos()){
    if (page.HasImage) {
        // run your code here
    }
}

Instead of using an index to export pages, you can do it by referencing the page number of the current PageInfo object in the foreach loop.

exporter.ExportPage(docInfo, page.PageNumber, Pfs);

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replied on August 29, 2023

Hi Jason ,

actually this is what I want ...

Thanks a ton

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SDK :How to check if document page is Empty ( has image or text ) ?

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