I tried your code, however the annotList count is 0 for both of the files. Are you using .NET 2.0 version of the assembly?

Thanks.

 

Hi,

Yes, I am using .NET 2.0 with Aspose.Pdf version 3.4.3.0. Please check with latest version.

Thanks.

Adeel Ahmad
Support Developer
Aspose Changsha Team
http://www.aspose.com/Wiki/default.aspx/Aspose.Corporate/ContactChangsha.html

I am using Aspose.Pdf.Kit 2.5.0.0, Aspose.Pdf wouldn't be needed for extracting annotations right? It is odd the annotation ArrayList still returns nothing.

Do you mind trying another file for me. I have it attached. Thank you!

Hi,

Yes, I am sorry Aspose.Pdf.Kit is used to extract Annotations. I have reproduce the error. It was working in version 2.4.2.0 but have some problems with latest version. I will discuss this with the developers and we will try to fix it as soon as possible. Sorry for inconvenience.

Thanks.

Adeel Ahmad
Support Developer
Aspose Changsha Team
http://www.aspose.com/Wiki/default.aspx/Aspose.Corporate/ContactChangsha.html

 

Hi,

We are plan to support extractting text per page now and we hope it could be available in a week.

Best regards.

---

Georgie Yuan
Lead Developer
Aspose Changsha Team
About Us
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Thanks for your prompt responses!

This is a question about how to efficiently use Aspose.Pdf and Aspose.Pdf.Kit.  In my app, I need to do a couple of things:

1. I need to check if the file is encrypted.  (I use Aspose.Pdf.PdfFileInfo)

2. I need to extract text, attachments. ( I use Aspose.Pdf.Kit.PdfExtractor)

3. I need to extract annotations. (I use Aspose.Pdf.Kit.PdfContentEditor)

This means I will need to load the same file 3 times, which could lead to performance issues if we need to run a lot of pdfs.

Is there a way that this can be improved? For example, being able to extract annotations via PdfExtractor, and being able to see if file is encrypted via PdfExtractor as well?

Thanks!

 

 

Hi,

It is possible to join but it will create more complexity. We have tried to make it simple so that developers can learn and use our library with no pain. Anyhow, I will discuss your concerns with the developers and if we have plan to support or give some functions together in one class then we will let you know. Right now, please use as it is. Thanks for suggestion.

 Thanks.

Adeel Ahmad
Support Developer
Aspose Changsha Team
http://www.aspose.com/Wiki/default.aspx/Aspose.Corporate/ContactChangsha.html

Hi, Becky
After we discussed the problem in detail, we found it can't be supported by merging several functions in one function since this will not improve the performance.

Anyway, you could use the stream parameter of the functions since this will open the file only once. But you should reset the position of the input stream before every operations like the following:
inputStream.Position = 0

Best regards.

---

Ken Du
Lead Developer
Aspose Changsha Team
Contact Us

hi,I have reproduce this error using Aspose.Pdf.Kit 2.5.0.0, and I will fix this bug within two days. In the next hotfix, we will support extrat "FreeText" annotation.

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Allen Wen
Developer
Aspose Changsha Team

Please download hotfix 3.4.4.0.

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Tommy Wang
Lead Developer
Aspose Changsha Team
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hi,becky_bai .

please download the Aspose.Pdf.Kit for .Net Hotfix 2.5.1.0 for extract annotations.

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Allen Wen
Developer
Aspose Changsha Team

Thank you! The annotation extraction is working!

The functionality we want to achieve is to see if text elements exist in the page or not, I was trying the ExtractText() funtion, it takes a while to run if the pdf is rather large. Is there (or could there be) a more efficient way to check text existence on a page?

Another question is: the ExtractText() function will throw exception when extracting the attached pdf. Can you see why?

 

Thank you!

Becky

 

Hi,

This is the only way to extract Text from Pdf page right now. We are working on the Text per page issue. Right now there is no property to check that, that page contains text or not.

About the second issue, I have reproduced this error. We will try to fix it soon.

Thanks.

Adeel Ahmad
Support Developer
Aspose Changsha Team
http://www.aspose.com/Wiki/default.aspx/Aspose.Corporate/ContactChangsha.html

 

Hi,

I'm reget to say that we have meet some technology problems which can not be solved in short time. We can't give an ETA for ExtractText bug now.

Best Regards.

---

Georgie Yuan
Lead Developer
Aspose Changsha Team
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