No. Image format is bmp. Just for a bit of background....I am populating fields in a pdf (invoice) and then adding a customer signature. Using Gnostice Document Viewer component to achieve this and all works fine except for adding the signature. I have created an example signature .bmp file for testing using Microsoft Paint and that works good so the problem is not the document viewer component. Gnostice tell me that I must use either bmp or jpg on their component - there is currently no support for png. The code I use is:
procedure TMainForm.Send_SignatureToInv;
var
LFormField : TgtPDFFormField;
ms,
TempStream : TMemoryStream;
LImage : TgtBitmapSurface;
bmp : tBitmap;
begin
LImage := TgtBitmapSurface.Create;
TempStream := TMemoryStream.Create;
ms := TMemoryStream.Create;
bmp := TBitmap.Create;
try
InvSign.SaveToImageStream(ms);
InvSign.SaveToImageFile('sig1.bmp'); //test ***********
bmp.LoadFromStream(ms);
bmp.SaveToFile('sig2.bmp'); //test ***************
bmp.SaveToStream(TempStream);
LImage := TgtBitmapSurface.Create;
LImage.LoadFromStream(TempStream);
LFormField := TgtPDFPage(InvViewer.ActiveDocument.GetPage(1)).Forms.ByName('SigButton');
if Assigned(LFormField) and (LFormField.GetElementType = ietFormPushButton) then
TgtPDFFormPushButton(LFormField).SetImage(LImage);
finally
InvSign.Empty := True;
TempStream.Free;
ms.Free;
LImage.Free;
bmp.Free;
end;
end;
The test lines are there so I can see what the image looks like and each time it is a black rectangle (this matches what I see on the PDF). 'InvSign' is the name given to the signature capture component. Never really worked with graphics before so it might simply be that my code is wrong. Any help will be appreciated.
Bill Zwirs
