Image not showing

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   QuickPDF Library version: TDebenuPDFLibrary1013
Delphi XE3

I am using .Pdf fillable forms extensively in my production project.  Each of the forms needs an image of a signature created and inserted at runtime, in place of a fillable text field that is being used simply as a place holder.   
I am using the following code to grab the dimensions of the fillable text field, then I basically "get rid of it" then I display the signature .Jpg image.  This works.  However, after the form is saved, then reopened, the signature field is not being displayed in QuickPDF, nor in an external .Pdf viewer like Adobe. However, upon printing, the signature shows up on the hard copy, in the correct place and it's the correct size.  
I need to know how to force QuickPDF or Adobe, to display the signature image .jpg that I know is there (because it prints), but is not being shown.  

Only 1 form out of 331 forms has this problem.  All other forms display the signature image in QuickPDF and Adobe even after having been saved and reloaded.
----------------------------------------------------------------------

                // Set text to blank, Grab the dimensions, then get rid of the "place holder" text field
                ff_val := '';
                idx := 29;
                qwk_pdf.SetFormFieldValue(idx, ff_val);
                sig_lft := qwk_pdf.GetFormFieldBound(idx, 0);
                sig_top := qwk_pdf.GetFormFieldBound(idx, 1);
                sig_wdt := qwk_pdf.GetFormFieldBound(idx, 2);
                sig_hgt := qwk_pdf.GetFormFieldBound(idx, 3);
                qwk_pdf.SetFormFieldVisible(idx, 0);
                qwk_pdf.UpdateAppearanceStream(idx);

                // Draw the image of the signature
                sig_blb_strm := dmCln.cdsPrvdr.CreateBlobStream(dmCln.cdsPrvdrSIG_JPG, bmRead);
                img_id := qwk_pdf.AddImageFromStream(sig_blb_strm, 0);
                qwk_pdf.DrawImage(sig_lft, sig_top, sig_wdt, 20);   

...
qwk_pdf_frm.SaveToFile(ff_mrg_fyl_nm);
...

//  At this point the signature image displays correctly in QuickPDF and Adobe.  However, when I reload the image into QuickPDF, or reload into Adobe, the signature image is not visible.  However, it prints onto the hard copy.
----------------------------------------------------------------------

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
27ffb8b2-bfac-4126-b Members Profile Find Members Posts Beginner Joined: 25 Mar 16 Location: Mars Status: Offline Points: 6	Post Options Post Reply Quote 27ffb8b2-bfac-4126-b Report Post Thanks(0) Quote Reply Topic: Image not showing Posted: 06 Dec 16 at 9:20PM
	QuickPDF Library version: TDebenuPDFLibrary1013 Delphi XE3 I am using .Pdf fillable forms extensively in my production project. Each of the forms needs an image of a signature created and inserted at runtime, in place of a fillable text field that is being used simply as a place holder. I am using the following code to grab the dimensions of the fillable text field, then I basically "get rid of it" then I display the signature .Jpg image. This works. However, after the form is saved, then reopened, the signature field is not being displayed in QuickPDF, nor in an external .Pdf viewer like Adobe. However, upon printing, the signature shows up on the hard copy, in the correct place and it's the correct size. I need to know how to force QuickPDF or Adobe, to display the signature image .jpg that I know is there (because it prints), but is not being shown. Only 1 form out of 331 forms has this problem. All other forms display the signature image in QuickPDF and Adobe even after having been saved and reloaded. ---------------------------------------------------------------------- // Set text to blank, Grab the dimensions, then get rid of the "place holder" text field ff_val := ''; idx := 29; qwk_pdf.SetFormFieldValue(idx, ff_val); sig_lft := qwk_pdf.GetFormFieldBound(idx, 0); sig_top := qwk_pdf.GetFormFieldBound(idx, 1); sig_wdt := qwk_pdf.GetFormFieldBound(idx, 2); sig_hgt := qwk_pdf.GetFormFieldBound(idx, 3); qwk_pdf.SetFormFieldVisible(idx, 0); qwk_pdf.UpdateAppearanceStream(idx); // Draw the image of the signature sig_blb_strm := dmCln.cdsPrvdr.CreateBlobStream(dmCln.cdsPrvdrSIG_JPG, bmRead); img_id := qwk_pdf.AddImageFromStream(sig_blb_strm, 0); qwk_pdf.DrawImage(sig_lft, sig_top, sig_wdt, 20); ... qwk_pdf_frm.SaveToFile(ff_mrg_fyl_nm); ... // At this point the signature image displays correctly in QuickPDF and Adobe. However, when I reload the image into QuickPDF, or reload into Adobe, the signature image is not visible. However, it prints onto the hard copy. ----------------------------------------------------------------------

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3524	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 07 Dec 16 at 9:28PM
	Hi, try it with an additional SetNeedAppearances(1) before SetFormFieldValue. Cheers and welcome here, Ingo
	Cheers, Ingo

27ffb8b2-bfac-4126-b Members Profile Find Members Posts Beginner Joined: 25 Mar 16 Location: Mars Status: Offline Points: 6	Post Options Post Reply Quote 27ffb8b2-bfac-4126-b Report Post Thanks(0) Quote Reply Posted: 08 Dec 16 at 2:12AM
	Hi Ingo, Sorry I did not include that line in my code snippet. It's actually in my original source code, a bit further up. So that is not the problem. I moved the line to just above where I set the field value, but it still has the same problem. The signature prints, but it is not visible in QuickPDF viewer, and it is not visible in an external .Pdf viewr like Adobe or Nuance Power PDF. Any other suggestions? Thanks in advance.

27ffb8b2-bfac-4126-b Members Profile Find Members Posts Beginner Joined: 25 Mar 16 Location: Mars Status: Offline Points: 6	Post Options Post Reply Quote 27ffb8b2-bfac-4126-b Report Post Thanks(0) Quote Reply Posted: 08 Dec 16 at 2:59AM
	Is there a way I can send you the .Pdf form that is manifesting this behavior? I don't see a user file upload section in your forums.

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3524	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 08 Dec 16 at 5:43PM
	Hi, you can upload the pdf anywhere (there are many data hoster out there ;-) and post the link here. So users or me <perhaps can help.
	Cheers, Ingo