Conversion from scanner taking a long time

[Michael Zephyr]

Hi,

The program is working great.  However when using my scanner, the conversion seems to take a long time.

It calls up my scanner software just fine.  Right after I scan my document(s) I get a window that says:

Creating PDF File(s)

Output File: image_001.pdf

Output Folder: C\Users\[my name]\AppData\Local\Temp.

That's all fine.  But I have to wait 30 to 60 seconds until it creates/displays the PDF.  It should be almost instantaneously.  Why the wait?

Please let me know.

Thank you,

MZ

 

[Andy Camp]

Hi,

I experience  the same scanning performance - 30 to 60 seconds for what was almost instantaneous on my old, old version of Acrobat.  Nitro Pro 12 and Canon scanner LiDE 210.

Any advice greatly appreciated!

[Allain Umailin]

Hello @Andy Camp @Michael Zephyr,

Thank you for reaching out to us through our Community Forums!

I understand you're experiencing some slowness when using the PDF > From Scanner option in Nitro Pro.  To assist you, please provide the following details:
  - Build of your Nitro Pro (found under, "Help > About Nitro" ex: 11.0.8.470)
  - What is the Make/Model of the Scanner you are using?
  - Do you know if the scanner drivers have been updated recently?  If so, what build are the drivers?
  - Do your scanner use TWAIN-compatible drivers? It is because Nitro Pro requires TWAIN Compatibility to use the Scanning option.

As an alternative, you can always Scan to an image and then either convert or insert the image to a PDF. 

Thanks for choosing Nitro Pro and I hope this helps!

[Andy Camp]

Hi AllainU,

Thanks for your quick reply. It has prompted to me to do my housekeeping.  I downloaded the latest scanner driver (Canoscan LIDE 210) and updated to the latest version of Nitro (12.6.1.298).  The long time needed to convert has disappeared - problem solved.  Many thanks for pointing me in the right direction!

Andy Camp

[Andy Camp]

...some more feedback: I thought I had solved the problem but I obviously hadn't.  I did some digging and thought that the delay was in Nitro looking for the scanner's TWAIN folder.  I added the TWAIN driver folder to the Windows PATH and the scanning has been very quick five times in a row.  Here's hoping it continues.

[Michael Zephyr]

Hell AllainU,

I understand you're experiencing some slowness when using the PDF > From Scanner option in Nitro Pro.  To assist you, please provide the following details:
  - Build of your Nitro Pro (found under, "Help > About Nitro" ex: 11.0.8.470)

     --> 12.6.1.298

  - What is the Make/Model of the Scanner you are using?

     ---> HP Officejet 6310 All-In-One

  - Do you know if the scanner drivers have been updated recently?  If so, what build are the drivers?

     ---> The scanner has the current drivers installed Provider: HP Date: 4/1/2012, Version: 8.0.0.1.  Though the date is 2012, that's HP's most current drivers for this printer since this printer dates back to 2006.  This printer is in fact compatible with Windows 10 which I am using. I did update the drivers for my printer/scanner and it comes up with the same driver date and version.

  - Do your scanner use TWAIN-compatible drivers? It is because Nitro Pro requires TWAIN Compatibility to use the Scanning option.

    ---> It uses WIA-Offfice Jet 6310.  There's nothing mentioned about TWAIN.  Nitropro easily sees my scanner.  It's just when my document(s) are scanned and click [Finish], it takes ~30 - 60 seconds for the image to appear in my program window.  In the scan profile setup there is no selection for TWAIN.

[Michael Zephyr]

Andy Camp:

From your post:

...some more feedback: I thought I had solved the problem but I obviously hadn't.  I did some digging and thought that the delay was in Nitro looking for the scanner's TWAIN folder.  I added the TWAIN driver folder to the Windows PATH and the scanning has been very quick five times in a row.  Here's hoping it continues.

Where EXACTLY did you add the TWAIN driver folder in the Windows path?  I looked at my windows path and have a twain_32 folder.

Let me know and thanks!

MZ

[Andy Camp]

Michael,

I followed the attached guidance https://www.computerhope.com/issues/ch000549.htm but the steps for me for Windows 8.1 were as follows:

1. Control Panel --> System and Security --> System

2. Choose the "Advanced system settings" option.  The System Properties dialog box appears.

3. Select Advanced tab.

4. Click on "Environment Variables" button. The "Environment Variables" dialog box opens.

5. In bottom window (called "System variables") scroll down and look for variable called "Path". Highlight "Path" and select "Edit".  The "Edit System Variable" dialog box appears.

6. Edit the path by adding the path for your twain drivers. For me, my revised path is as follows (with my change in bold)

C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\ProgramData\Oracle\Java\javapath;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x86;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Sony\VAIO Improvement\;C:\Program Files (x86)\Sony\VAIO Startup Setting Tool;C:\Program Files (x86)\Windows Live\Shared;C:\Windows\twain_32\CNQ4809

7. Click OK. Close windows.

Now having said all of that, I still get instances of long scan times!  It works perfectly after re-starting the PC: indeed, I spent over an hour the other day scanning single page and multi-page documents in a single session, with the short scan times that you would expect.  Today, after starting from Hibernate state rather than Windows start-up, I experienced long scan times again.  Not sure if that is the cause or indeed the only cause but I shall explore further.  Do note that I run a Canoscan LiDE 210 scanner and the Canon website explicitly highlights that the driver I have is TWAIN compliant.  

Good luck!

Andy