Hi, I'm being asked by a customer if we can digitally sign a pdf from a certificate in the local machine certificate store? Alternately is there a way to do it from a certificate stored up in Azure? From looking at internet CAs it looks like they are selling personal ones on thumb drives and enterp...

I have been through the digital signing example, and the use of GDViewer. Using winforms, although I can place a new signature from the certificate store on the Adobe pdf (or any PDF) using GDPicture, I can't for the life of me see a way to fill an existing signature field with a valid signature and...

Hello, I was upgrading my application to 14.0.0.61 from an earlier version of 14 and noticed the following PDF & OCR methods and events no longer exist under gdpictureimaging. Is there a simple alternative to them? I see the sample but rather not have to replace the simplicity of some of the met...

Thanks Jean-Luc,

I elected to go with building a new PDF using the clone method (page by page) from the PDF's involved

Scott

I see there are a few ways to be able to insert a PDF with multiple pages into another PDF with multiple pages. Which is the better way to go? For both speed and reliability, the PDFs may or may not have been generated from GDPicture 1) Split the original using clone (page by page) creating 2 PDFs s...

Never Mind
I see the philosophy has changed. Unfortunately it will cause rather extensive code changes in my application.
As described here for anyone else

viewtopic.php?f=29&t=4252&p=14181&hilit=viewer#p14181

Hello, I have just purchased GDP 14 Ultimate and updating a large application written with version 6. I see a lot has changed. Previously I had used GdViewer1.PDFRenderPageToGdPictureImage to pull individual PDF pages from the viewer. Is this no longer possible? What is the simplest way to be able t...

Do you mean from the output from the output of PdfReaderRenderPageToGdPictureImage ?

Scott

Hi Scott, The rasterizer engine always generate color output image. If you want to get a bitonal image you have just to use the ConvertTo1Bpp method. If you want to extract image from PDF in its native bitdepth you should use the PdfReaderRenderExtractImage method. Kind regards, Loïc Thanks Loïc, B...

Hi, I'm having an issue when converting from a PDF with B&W image content to a multipage TIFF After using the PdfReaderRenderPageToGdPictureImage method , and using TiffSaveAsMultiPageFile(MultiPageID, ImagefileName, TiffCompression.TiffCompressionAUTO) the tiff pages are always LZW compressed, ...

Adding another thought...if using SaveAsPDFOCR and PdfAddGdPictureImageToPdfOCR, Just work the method so that it takes a B&W image as an argument (PDFID,IMAGEID,BWID,,,,) That way we could supply the black and white image , either extracted from the single or multipage , filter as needed to get ...

Hi Loïc, In the methods SaveAsPDFOCR and PdfAddGdPictureImageToPdfOCR (and maybe even PdfOCRCreateFromMultipageTIFF, but I know it would be much harder) , would it be possible to have an overload that converted color images to bitonal before performing the OCR. The image within the PDF would still b...

HI Loïc,

Not at all now that I know, thanks

Scott

HI Loïc, I didn't realize that the GdPictureImaging.TagGetValueString returns a null terminated string, is this normal? Dim sval As String = GDP.TagGetValueString(ImageID, tagsI) Dim ca() As Char = sval.ToCharArray For Each c As Char In ca Debug.Print(Asc(c).ToString) Next Will show ASCII code 0 at ...

Thanks Loïc,

I must have been doing something stupid, my over thought out code was not working , your simple example did, grin.

easy fix thanks,

Scott