WebAIM - Web Accessibility In Mind

E-mail List Archives

WebAIM-Forum Digest, Vol 194, Issue 9

for

From: Daniel Donaldson
Date: May 15, 2021 12:22PM

The effect is achieved via Javascript which scales and moves the image(s)
based upon user scroll thresholds.

On Sat, May 15, 2021 at 11:00 AM < <EMAIL REMOVED> >
wrote:

> Send WebAIM-Forum mailing list submissions to
> <EMAIL REMOVED>
>
> To subscribe or unsubscribe via the World Wide Web, visit
> https://list.webaim.org/cgi-bin/mailman/listinfo/webaim-forum
> or, via email, send a message with subject or body 'help' to
> <EMAIL REMOVED>
>
> You can reach the person managing the list at
> <EMAIL REMOVED>
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of WebAIM-Forum digest..."
> Today's Topics:
>
> 1. Fixing OCR issues in PDF with Adobe Acrobat Pro (Jonathan Avila)
> 2. Re: Fixing OCR issues in PDF with Adobe Acrobat Pro (Philip Kiff)
> 3. Re: Fixing OCR issues in PDF with Adobe Acrobat Pro (Karen McCall)
> 4. the 10th GAAD is May 20 (Jennison Mark Asuncion)
> 5. Re: Fixing OCR issues in PDF with Adobe Acrobat Pro (Philip Kiff)
> 6. Re: Fixing OCR issues in PDF with Adobe Acrobat Pro (Philip Kiff)
> 7. information on the type of technology used for the effect in
> this web page (Catherine Roy)
> 8. Re: information on the type of technology used for the effect
> in this web page (Polling, Neil)
> 9. Re: information on the type of technology used for the effect
> in this web page (Catherine Roy)
>
>
>
> ---------- Forwarded message ----------
> From: Jonathan Avila < <EMAIL REMOVED> >
> To: WebAIM Discussion List < <EMAIL REMOVED> >
> Cc:
> Bcc:
> Date: Fri, 14 May 2021 23:26:28 +0000
> Subject: [WebAIM] Fixing OCR issues in PDF with Adobe Acrobat Pro
> Hi all, I still have not found a great way within Acrobat to address
> optical character recognition (OCR) errors. The situation is that the text
> was incorrectly recognized but Acrobat does not perceive the issues as
> suspect and thus the tools typically in Acrobat to fix OCR suspects are not
> available. I'm not sure if there is a way to flag the content as suspect
> somehow - but it seems silly to not allow you to edit any of the OCR text
> unless it's a suspect.
>
> OCR'd content appears to have hidden objects that represent the text for
> the tags structure but this text is not editable itself. While Acrobat
> does have an edit text option in the last couple versions that does a good
> job in allowing you to edit the visual content in a type face that looks
> like OCR'd text - I am dealing with a document that can't be edited in that
> way for legal reasons. I need to edit the hidden text.
>
> In addition, hacks like use of actual text don't work with mobile devices
> so using that approach is not an option. The only way I have found is to
> artifact the object and create a new text box - but the text in that and
> hide it behind the image. That does work across desktop and mobile
> assistive technology.
>
> I also played with the preflight option to make OCR text into layers. It
> does a good job converting the OCR text into a different layer that can be
> edited. The challenge is then merging or flattening the layers back into
> one. When I try that I either lose the content in all the tags or I end up
> with duplicated text on screen even though I have chosen to not display the
> layer and mark the layer as a reference layer. Has anyone had luck with
> this method?
>
> Does anyone have any thoughts on how best to edit OCR text in Acrobat when
> you cannot edit the visual text and OCR suspects are not detected? I've
> tried Axes Quick for PDF but it doesn't seem to have any options for this
> either. I believe some programs like Abbyy Fine Reader could be used but
> my license for that is very old.
>
> Best Regards,
>
> Jonathan
>
>
>
>
> ---------- Forwarded message ----------
> From: Philip Kiff < <EMAIL REMOVED> >
> To: <EMAIL REMOVED>
> Cc:
> Bcc:
> Date: Sat, 15 May 2021 08:52:31 -0400
> Subject: Re: [WebAIM] Fixing OCR issues in PDF with Adobe Acrobat Pro
> I haven't worked on a challengin OCR'd PDF in a year or two, but I could
> have sworn there was a way to get to a mode that would allow you to edit
> *any* of the OCR'd text, not just the suspect text without switching to
> a replacement font. The interface was terrible and the way to switch
> from editing suspect text to editing any text was not at all obvious.
> Mmmm....I can't find a sample of a case where I did this, so maybe I'm
> mis-remembering, and I actually used the "actual text" property - which
> you already indicated wouldn't meet your needs.
>
> I've never tried the other methods you propose. And yes, it does seem
> that Acrobat has an entirely other set of hidden object layer it uses to
> manage OCR'd text. And I don't think axesPDF QuickFix provides any
> access to it, either.
>
> Phil.
>
> On 2021-05-14 19:26, Jonathan Avila wrote:
> > Hi all, I still have not found a great way within Acrobat to address
> optical character recognition (OCR) errors. The situation is that the text
> was incorrectly recognized but Acrobat does not perceive the issues as
> suspect and thus the tools typically in Acrobat to fix OCR suspects are not
> available. I'm not sure if there is a way to flag the content as suspect
> somehow - but it seems silly to not allow you to edit any of the OCR text
> unless it's a suspect.
> >
> > OCR'd content appears to have hidden objects that represent the text for
> the tags structure but this text is not editable itself. While Acrobat
> does have an edit text option in the last couple versions that does a good
> job in allowing you to edit the visual content in a type face that looks
> like OCR'd text - I am dealing with a document that can't be edited in that
> way for legal reasons. I need to edit the hidden text.
> >
> > In addition, hacks like use of actual text don't work with mobile
> devices so using that approach is not an option. The only way I have found
> is to artifact the object and create a new text box - but the text in that
> and hide it behind the image. That does work across desktop and mobile
> assistive technology.
> >
> > I also played with the preflight option to make OCR text into layers.
> It does a good job converting the OCR text into a different layer that can
> be edited. The challenge is then merging or flattening the layers back
> into one. When I try that I either lose the content in all the tags or I
> end up with duplicated text on screen even though I have chosen to not
> display the layer and mark the layer as a reference layer. Has anyone had
> luck with this method?
> >
> > Does anyone have any thoughts on how best to edit OCR text in Acrobat
> when you cannot edit the visual text and OCR suspects are not detected?
> I've tried Axes Quick for PDF but it doesn't seem to have any options for
> this either. I believe some programs like Abbyy Fine Reader could be used
> but my license for that is very old.
> >
> > Best Regards,
> >
> > Jonathan
> > > > > > > > >
>
>
>
> ---------- Forwarded message ----------
> From: Karen McCall < <EMAIL REMOVED> >
> To: WebAIM Discussion List < <EMAIL REMOVED> >
> Cc:
> Bcc:
> Date: Sat, 15 May 2021 13:07:19 +0000
> Subject: Re: [WebAIM] Fixing OCR issues in PDF with Adobe Acrobat Pro
> You might be able to use the Edit PDF tools IF you haven't tagged the
> document yet. If you have, using this tool will destroy all tags either on
> that page or in the document...and you have to know what is wrong in the
> text before you can fix it. The Edit PDF capability may show you the
> correct spelling and spacing but the underlying OCR is wrong. I never
> recommend using this tool but offer it as an option if you can get it to do
> what you want it to do.
>
> The problem using Actual Text for large pieces of content is that the
> Text-to-Speech tools have to use a different reading mode for images of
> text and sometimes lose the ability to follow along with highlighting. Same
> with something like ZoomText Fusion...you lose the ability of JAWS to
> highlight where you are reading. I recommend against using the Actual Text
> attribute for large pieces of text and entire documents.
>
> I use ABBYY FineReader for any PDF document that I need to OCR. The latest
> version even has the capabilities to add form controls to the PDF (you have
> to do some remediation in the Tags Tree in Acrobat but these are minor).
> Others use OmniPage Pro and either can be purchased on sale for a
> reasonable price, not a subscription.
>
> FineReader has two ways of dealing with scanned document:
>
> As soon as you open a scanned document the OCR is done and you can resave
> the document as a searchable PDF without looking at any suspects or issues
> of spacing between words and characters. I use this when I want to just
> read a PDF that isn't tagged or is a scan because I can also send the
> document to Word.
>
> The other tool in FineReader (and OmniPage Pro) is the ability to create
> an OCR project, open the PDF and access their text editor. I can use JAWS
> in the text editor so I can hear when words aren't correct or if there are
> no spaces between words or if there are spaces between characters. There is
> a sort of Styles pane where you can add structure, text, images and tables
> are identified in the document, and I have the ability to find an replace
> optional hyphens. I had a really horrible scan of a book with handwritten
> notes, doodles and diagrams in the margins and around the text and within a
> few hours had a readable PDF document with my screen reader.
>
> I never use the Acrobat OCR for the reason mentioned...I can't rely on it
> telling "the truth" about what it found and what it missed. I ended up
> spending time remediating the scanned PDF only to find that words were
> wrong, some paragraphs had no spaces between words and others had spaces
> between characters in words. I save time by using one of the stand-alone
> OCR tools.
>
> Cheers, Karen
>
>
>
>