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NVDA OCR with adobe image file


Cearbhall O'Meadhra
 

Hi,

 

I have a scanned image in an Adobe .pdf file. I want to run NVDAs OCR over it. When I open the document in adobe Acrobat DC I get a message  that this is a blank document. I press F6 twice and press enter on the home button. Then I press NVDA+R and I hear recognising and below that result document but there is no text showing.

 

I know that this document is an image of scanned text because I can convert it using Abbyy Finereader.

 

All advice and instructions welcome!

 

All the best,

 

Cearbhall

 

m +353 (0)833323487 Ph: _353 (0)1-2864623 e: cearbhall.omeadhra@...

 

 




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Sean Randall
 

Hi Cearbhall

First, are you sure the first  page of the file  has recognisable text? If it is a cover sheet for example, it may not be readily scannable. OCR will only work with onscreen text, rather than giving you a whole document at once.

I have  always performed the OCR on the alert about it being a blank document: I don’t understand the purpose of you pressing the home button before doing the OCR I’m a fraid.

 

Sean.

 

From: Cearbhall O'Meadhra
Sent: 07 November 2020 0:09 13
To: nvda@nvda.groups.io
Subject: [nvda] NVDA OCR with adobe image file

 

Hi,

 

I have a scanned image in an Adobe .pdf file. I want to run NVDAs OCR over it. When I open the document in adobe Acrobat DC I get a message  that this is a blank document. I press F6 twice and press enter on the home button. Then I press NVDA+R and I hear recognising and below that result document but there is no text showing.

 

I know that this document is an image of scanned text because I can convert it using Abbyy Finereader.

 

All advice and instructions welcome!

 

All the best,

 

Cearbhall

 

m +353 (0)833323487 Ph: _353 (0)1-2864623 e: cearbhall.omeadhra@...

 

 




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Quentin Christensen
 

Try pressing NVDA+r when you first open the file and get the message about it being blank.


On Sat, Nov 7, 2020 at 11:09 AM Cearbhall O'Meadhra <cearbhall.omeadhra@...> wrote:

Hi,

 

I have a scanned image in an Adobe .pdf file. I want to run NVDAs OCR over it. When I open the document in adobe Acrobat DC I get a message  that this is a blank document. I press F6 twice and press enter on the home button. Then I press NVDA+R and I hear recognising and below that result document but there is no text showing.

 

I know that this document is an image of scanned text because I can convert it using Abbyy Finereader.

 

All advice and instructions welcome!

 

All the best,

 

Cearbhall

 

m +353 (0)833323487 Ph: _353 (0)1-2864623 e: cearbhall.omeadhra@...

 

 




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--
Quentin Christensen
Training and Support Manager


Cearbhall O'Meadhra
 

Quentin,

 

Thanks for esponding!

 

As soon as I opened the file, I received no response from within the file. I pressed down-arrow and then up-arrow and I got the message Empty document as you suggested. I then pressed NVDA + r and got the following response:  

This document appears to be empty. It may be a scanned image that needs OCR or it may be a malformed document

 

The Result line shows no data at all.

 

Would it be possible to share this file with you and see what you observe about it? The content is Irish so I dont expect you to validate the text but, at least, you might be able to determine why the OCR is not happening.

 

All the best,

 

Cearbhall

 

m +353 (0)833323487 Ph: _353 (0)1-2864623 e: cearbhall.omeadhra@...

 

 

From: nvda@nvda.groups.io <nvda@nvda.groups.io> On Behalf Of Quentin Christensen
Sent: Monday, November 9, 2020 3:04 AM
To: nvda@nvda.groups.io
Subject: Re: [nvda] NVDA OCR with adobe image file

 

Try pressing NVDA+r when you first open the file and get the message about it being blank.

 

On Sat, Nov 7, 2020 at 11:09 AM Cearbhall O'Meadhra <cearbhall.omeadhra@...> wrote:

Hi,

 

I have a scanned image in an Adobe .pdf file. I want to run NVDAs OCR over it. When I open the document in adobe Acrobat DC I get a message  that this is a blank document. I press F6 twice and press enter on the home button. Then I press NVDA+R and I hear recognising and below that result document but there is no text showing.

 

I know that this document is an image of scanned text because I can convert it using Abbyy Finereader.

 

All advice and instructions welcome!

 

All the best,

 

Cearbhall

 

m +353 (0)833323487 Ph: _353 (0)1-2864623 e: cearbhall.omeadhra@...

 

 

 


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--

Quentin Christensen
Training and Support Manager

 


CARLOS-ESTEBAN <carlosestebanpianista@...>
 

Hi all.

What happen in the file when you open the PDF with a browser? Firefox, Chrome, Edge and others browsers based in Chromium (Brabe, Opera, etc.) read PDF files, and in Some cases let that NVDA detect the graphics, and you can use the OCR pressing f11 for complete screen before of NVDA+r.

Regards.

 

 

Carlos Esteban Martínez Macías.

Músico (pianista) y ayuda a usuarios ciegos y con discapacidad visual, con el uso de lectores de pantalla y tecnología.

Experto certificado en el lector de pantalla NVDA.

 

Musician (pianist) and also help to the blind people with the use of screen readers and technology.

Certified expert in the screen reader NVDA.

Certified expert in NVDA

 

De: Cearbhall O'Meadhra
Enviado: lunes, 9 de noviembre de 2020 4:23
Para: nvda@nvda.groups.io
Asunto: Re: [nvda] NVDA OCR with adobe image file

 

Quentin,

 

Thanks for esponding!

 

As soon as I opened the file, I received no response from within the file. I pressed down-arrow and then up-arrow and I got the message Empty document as you suggested. I then pressed NVDA + r and got the following response:  

This document appears to be empty. It may be a scanned image that needs OCR or it may be a malformed document

 

The Result line shows no data at all.

 

Would it be possible to share this file with you and see what you observe about it? The content is Irish so I dont expect you to validate the text but, at least, you might be able to determine why the OCR is not happening.

 

All the best,

 

Cearbhall

 

m +353 (0)833323487 Ph: _353 (0)1-2864623 e: cearbhall.omeadhra@...

 

 

From: nvda@nvda.groups.io <nvda@nvda.groups.io> On Behalf Of Quentin Christensen
Sent: Monday, November 9, 2020 3:04 AM
To: nvda@nvda.groups.io
Subject: Re: [nvda] NVDA OCR with adobe image file

 

Try pressing NVDA+r when you first open the file and get the message about it being blank.

 

On Sat, Nov 7, 2020 at 11:09 AM Cearbhall O'Meadhra <cearbhall.omeadhra@...> wrote:

Hi,

 

I have a scanned image in an Adobe .pdf file. I want to run NVDAs OCR over it. When I open the document in adobe Acrobat DC I get a message  that this is a blank document. I press F6 twice and press enter on the home button. Then I press NVDA+R and I hear recognising and below that result document but there is no text showing.

 

I know that this document is an image of scanned text because I can convert it using Abbyy Finereader.

 

All advice and instructions welcome!

 

All the best,

 

Cearbhall

 

m +353 (0)833323487 Ph: _353 (0)1-2864623 e: cearbhall.omeadhra@...

 

 

 

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--

Quentin Christensen
Training and Support Manager