Force Show/Hide of PDF Elements

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Last post 07-22-2010, 7:34 AM by shahzad.latif. 10 replies.


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02-04-2010, 4:41 PM 220846

deanbarnes
Joined on 11-18-2009
Posts 24
Issues: PDFKITNET-14297 (Won't Fix); PDFKITNET-18677 (Unresolved)

Force Show/Hide of PDF Elements

I am having difficulty with your Aspose.PDF library to accomplish certain tasks. I have been able to find proper API to detect/create bookmarks, annotations, metadata, attached files, and notes.

What I am unable to do however is force a file to display or hide bookmarks, annotations, attachments, and/or notes. I believe this is a setting with the PDF files as I am able to set them when I develop new PDFs from either Adobe Acrobat or a tool such as iTextSharp. What I want to do is modify an existing file and change the settings to display
- Bookmarks Panel
- Attachments Panel
- Notes Panel
- Annotations

Please advise on as to how I can do this with your API,

02-05-2010, 9:00 AM 220985 in reply to 220846

shahzad.latif
Joined on 12-02-2008
Posts 6,181

Re: Force Show/Hide of PDF Elements

Hi Kunal,

We're looking into your requirement and you'll be updated the earliest possible.

We're sorry for the inconvenience.
Regards,

Shahzad Latif - [Follow me on Twitter!]
Support Developer/Developer Evangelist
Aspose Sialkot Team
Aspose - Your File Format Experts

Keep in touch! We're on Twitter and Facebook

02-09-2010, 12:18 AM 221340 in reply to 220985

shahzad.latif
Joined on 12-02-2008
Posts 6,181

Re: Force Show/Hide of PDF Elements

Hi Kunal,

We're looking into your requirement, however we need a little more input from your side. The only panels available in Adobe Reader, or other viewers for that matter, are as follows:

Articles
Attachements
Comments
Layers
Model Tree
Pages

Are you interested to be able to show/hide all of the above panels individually? Moreover, can you please share which 'Notes Panel' are you referring too? Is it the 'Comments Panel'? Also, are you interested to be able to show/hide annotations inside the PDF pages?

Please share your thoughts in detail so we could proceed further to help you out.
Regards,

Shahzad Latif - [Follow me on Twitter!]
Support Developer/Developer Evangelist
Aspose Sialkot Team
Aspose - Your File Format Experts

Keep in touch! We're on Twitter and Facebook

02-09-2010, 8:41 PM 221548 in reply to 221340

deanbarnes
Joined on 11-18-2009
Posts 24

Re: Force Show/Hide of PDF Elements

This is correct, sorry for the confusion, notes and annotations i believe are the same thing.

Otherwise yes - I am trying to either show/hide each of these panels. I want to see if there is any content, and if there is display such a panel, if there is no content then that panel can remain as is (hidden or shown, whatever the file setting was)

Thank you

02-10-2010, 11:23 AM 221701 in reply to 221548

shahzad.latif
Joined on 12-02-2008
Posts 6,181

Re: Force Show/Hide of PDF Elements

Hi Kunal,

Thank you very much for sharing the details. We're looking into your requirement and you'll be updated shortly.

We're sorry for the inconvenience.
Regards,

Shahzad Latif - [Follow me on Twitter!]
Support Developer/Developer Evangelist
Aspose Sialkot Team
Aspose - Your File Format Experts

Keep in touch! We're on Twitter and Facebook

02-11-2010, 4:05 AM 221854 in reply to 221701

shahzad.latif
Joined on 12-02-2008
Posts 6,181

Re: Force Show/Hide of PDF Elements

Hi Kunal,

I'm sorry to inform you that this feature is currently not available. However, I have logged a new feature request as PDFKITNET-14297 in our issue tracking system for this requirement. Our team will look into this and you'll be updated via this forum thread once the feature is supported.

We're sorry for the inconvenience.
Regards,

Shahzad Latif - [Follow me on Twitter!]
Support Developer/Developer Evangelist
Aspose Sialkot Team
Aspose - Your File Format Experts

Keep in touch! We're on Twitter and Facebook

03-09-2010, 4:45 AM 226230 in reply to 221854

shahzad.latif
Joined on 12-02-2008
Posts 6,181

Re: Force Show/Hide of PDF Elements

Hi Kunal,

I would like to update you that Aspose.Pdf.Kit allows you to show or hide some of the panels using PdfContentEditor and ViewerPreference classes. These are the only panels which are allowed by PDF specifications; other elements, which are not allowed according to the specification can't be provided in Aspose.Pdf.Kit.

Please see an example below:

               //creat PdfContentEditor and bind pdf file
               Aspose.Pdf.Kit.PdfContentEditor editor = new Aspose.Pdf.Kit.PdfContentEditor();
               editor.BindPdf("input.pdf");

               //show pages panel
               editor.ChangeViewerPreference(ViewerPreference.PageModeUseThumbs);
               //show optional content panel
               editor.ChangeViewerPreference(ViewerPreference.PageModeUseOC);
               //show document outlines panel
               editor.ChangeViewerPreference(ViewerPreference.PageModeUseOutlines);
               //show attachment panel
               editor.ChangeViewerPreference(ViewerPreference.PageModeUseAttachment);
               editor.Save("output.pdf");

You can also find all other possible flags in ViewerPreference class. Please see the available options in detail to find if it satisfy your requirement.

If you have any further questions, please do let us know.
Regards,

Shahzad Latif - [Follow me on Twitter!]
Support Developer/Developer Evangelist
Aspose Sialkot Team
Aspose - Your File Format Experts

Keep in touch! We're on Twitter and Facebook

07-20-2010, 12:01 PM 249544 in reply to 226230

deanbarnes
Joined on 11-18-2009
Posts 24

Re: Force Show/Hide of PDF Elements

Thanks this has been most helpful.

There is one issue I see which is adobe allows any of the following items to be displayed

Pages | Bookmarks | Layers AND
Comments | Attachments

Aspose's code only marks the last selected ViewerPreference.

Is it possible to show 1 item from each group adobe supports, rather than just 1 item out of the 5?

Meaning can I show Pages and Attachments instead of just Pages or attachments?

Thanks

07-21-2010, 11:57 AM 249730 in reply to 249544

shahzad.latif
Joined on 12-02-2008
Posts 6,181

Re: Force Show/Hide of PDF Elements

Hi Kunal,

I have tested this issue at my end and noticed that only one panel is being displayed at one time. I just wanted to make sure that we're on the same page regarding this issue. Do you want to open multiple panels at the same time i.e. Pages and Attachment panels, using Aspose.Pdf.Kit?

Please confirm, so we could move forward.
Regards,

Shahzad Latif - [Follow me on Twitter!]
Support Developer/Developer Evangelist
Aspose Sialkot Team
Aspose - Your File Format Experts

Keep in touch! We're on Twitter and Facebook

07-21-2010, 1:54 PM 249755 in reply to 249730

deanbarnes
Joined on 11-18-2009
Posts 24

Re: Force Show/Hide of PDF Elements

That is correct. But it is not even possible in adobe to show any 2 panels.

only one from
Pages | Bookmarks | Layers AND

one from
Comments | Attachments

So Pages + Comments or Pages + Attachments or Bookmarks + comments or Bookmarks + attachments, etc

07-22-2010, 7:34 AM 249899 in reply to 249755

shahzad.latif
Joined on 12-02-2008
Posts 6,181

Re: Force Show/Hide of PDF Elements

Hi Kunal,

Thank you very much for the confirmation. I have logged this issue as PDFKITNET-18677 in our issue tracking system. Our team will look into this issue and you'll be updated via this forum thread once it is resolved.

We're sorry for the inconvenience.
Regards,

Shahzad Latif - [Follow me on Twitter!]
Support Developer/Developer Evangelist
Aspose Sialkot Team
Aspose - Your File Format Experts

Keep in touch! We're on Twitter and Facebook