Re: [libreoffice-users] Re: Searchable PDFs from Graphite fonts

Hi all,

Thank you for all your enthusiastic help with this.

I also made some progress. Using Infix PDF Editor 5 (Windows trial 
version under Wine) and/or fontforge (Linux) I could see that the Font 
mapping was messed up. The mistaken mappings begin:

> Th -> T
> i -> hi

That is, the PDF converter has broken 'This' at the wrong place into 
'T/hi/s' instead of 'Th/i/s'. All successive instances of the 'i' glyph 
are mapped to 'hi', thus explaining the drunken slurring effect.

I was able to manually repair the mappings using podofobrowser 
(Opensource, pre-built Windows executable under Wine). Now my real PDF 
is good. But if I re-create it I need to re-repair it.

I've reproduced the problem with both Debian and the LO versions of LO. 
Maybe I should also try installing AOO.

webmaster-Kracked_P_P: would you be able to attach the PDF that you 
produced from my file so I can look for signs?

My version of the fonts is from January 2012, so that may be a source of 
the problem. Another possibility, since it's fairly clearly a bug 
somewhere, is that maybe building for 64 bit architecture makes it 
disappear.

Unless anyone has a better idea, I'll file this as a LO bug.

Cheers,
Jonathan


On 01/11/12 04:39, VA wrote:
> Interesting problem. Based on my tests, which I detail below, it appears
> to be LibO bug rather than a font problem.
>
> I'm using LibO 3.5.6.2 with Win7 and Adobe Reader.
>
> In the sentence "This is the official version" with Linux Libertine G,
> there are two instances of automatic ligatures--the "Th" combination in
> "This," and the "ffi" combination in "official." In Adobe Reader, I aas
> able to find "This" when I did a search, which means that the Reader
> recognized the "Th" ligature as a "T" followed by an "h" which is what I
> typed into the search box. But, when I tried to search for "official"
> the Adobe Reader couldn't find it, which means it did NOT associate my
> typing of an "f", "f", "I" with the "ffi" ligature.
>
> Then when I copied and pasted the sentence from the PDF file into a
> plain text editor, it placed an "h" before every instance of an "i" just
> as was reported. However, this obviously has nothing to do with
> ligatures as most of the instances of "i" were NOT included in the
> ligatures. In fact, it did not place an "h" before the "i" in the "ffi"
> ligature.
>
> For comparison, I ran the same test using Apache OpenOffice 3.4.1. to
> see if it is a font issue or a program issue. I'm sorry to report that
> it appears to be a program issue. In AOO, I typed the same sentence
> using Linux Libertine G, "This is the official version." I then saved it
> as a PDF and opened it in Adobe Reader. This time, a search found both
> "This" and "official" despite both words containing ligatures. And, when
> I copied the sentence into a plain text editor, it copied correctly
> without any additions of "h" before "i".
>
> I love the Linux Libertine set of fonts. I use it, not only with LibO
> and AOO, but also when I set a document in LaTeX.
>
> I have found that Apache OpenOffice's support for Linux Libertine G
> appears to be more complete and polished than LibO's. This may be an
> example of that more complete support.
>
> Of course, LibO has its advantages over AOO; for example, it properly
> hyphenates American English words, with AOO does not appear to do. It
> would be nice if someone could combine the best of both programs into
> one complete program (along with the tabbed interface of Lotus Symphony,
> yet a third fork of the original OO). But, I won't hold my breath.
>
> Virgil
>
>
>
> -----Original Message----- From: Dan Lewis
> Sent: Wednesday, October 31, 2012 7:02 AM
> To: users@global.libreoffice.org
> Subject: Re: [libreoffice-users] Re: Searchable PDFs from Graphite fonts
>
> On 10/30/2012 11:08 PM, Jonathan Schultz wrote:
> > > I can select the text in the PDF, copy and paste, but get an 'h'
> > > added before most 'i'. I can search, but not if the word is one with
> > > the extra h before i Steve
> >
> > That's exactly what I mean. It effectively means no searching.
> >
> > > I tried both Linux Libertine and Linux Biolinum [14 point] on my
> > > 3.5.7 version for Ubuntu 64-bit. I cannot replicate the issue with
> > > "added" characters.
> >
> > Were you using Graphite fonts ('Libertine G'/'Biolinum G')? Those are
> > the ones where the problem arises. Those are also the fonts that do
> > ligatures and other lovely typesetting things that make them look so
> > nice, which I why I want to use them.
> >
> > Cheers,
> > Jonathan
> Seems to me that you have solved your own problem: it is the
> fonts. The search function can not handle the the lovely typesetting
> things. As you mentioned, an "i" looks like a "hi" to it. The only real
> solution is to not use any of the Graphite fonts in a PDF.
> But if you want to search the PDF, have you opened it in Draw and
> search for the text in it?
>
> --Dan

--
For unsubscribe instructions e-mail to: users+help@global.libreoffice.org
Problems? http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/
Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette
List archive: http://listarchives.libreoffice.org/global/users/
All messages sent to this list will be publicly archived and cannot be deleted