Private Use Area in Use (from Tag characters and in-line graphics (from Tag characters))

[Philippe Verdy]

This possibly fails because William possibly forgot to embed his font in
the document itself (or Serif PagePlus forgets to do it when it creates the
PDF document, and refuses to embed glyphs from the font that are bound to
Unicode PUAs when it creates the embeded font). However no such problem
when creating PDFs with MS Office, or via the Adobe Acrobat "printer"
driver or other printer drivers generating PDF files, including Google
Cloud Print).

So this could be a misuse of Serif PagePlus when creating the PDF (I don't
know this software, may be there are options set up that ells it to not
embed fonts from a list of fonts that the recipient is supposed to have
installed locally, to save storage space for the document, byt evoiding
such embedding). Another reason may be that the font is marked as "not
embeddable" within its exposed properties.

Another reason may be that John tries to open the document with a software
that does not handle embedded fonts, or that ignores it to use only the
fonts preinstalled by John in his preferences. And in such case the result
depends only on fonts preinstalled on his local system (that does not
include the fonts created by William), or his software is setup to use
exclusively a specific local "Unicode" font for all PUAs.

(Softwares that behaved in this bad way was old versions of Internet
Explorer, due to limitation of his text renderers, however this should not
happen with PDFs, provided you have used a correct plugion version for
displaying PDF in the browser : if this fails in the browser, download the
document and view it with Adobe Reader instead of view the plugin: there
are many PDF plugins on markets that do not support essential features and
just built to display PDF containing scanned bitmaps, but with very poor
support of text or vector graphics, or tuned specifically to change the
document for another device or paper format).

Without citing which softwares are used (and which PDF in the list does not
load correctly), it is difficult to tell, but for me I have no problems
with a few docs I saw created by William. So:

NO F = NO FAIL for me.

2015-06-03 13:38 GMT+02:00 John <idou747 at gmail.com>:

> Yep, I clicked on your document and saw an empty square where your
> character should be.
>
> F = FAIL.
>
> —
> Chris
>
>
> On Wed, Jun 3, 2015 at 6:30 PM, William_J_G Overington <
> wjgo_10009 at btinternet.com> wrote:
>
>> Private Use Area in Use (from Tag characters and in-line graphics (from
>> Tag characters))
>>
>>
>> >> That's not agreed upon. I'd say that the general agreement is that the
>> private ranges are of limited usefulness for some very limited use cases
>> (such as designing encodings for new scripts).
>>
>>
>> > They are of limited usefulness precisely because it is pathologically
>> hard to make use of them in their current state of technological evolution.
>> If they were easy to make use of, people would be using them all the time.
>> I’d bet good money that if you surveyed a lot of applications where custom
>> characters are being used, they are not using private use ranges. Now why
>> would that be?
>>
>>
>> Actually, I have used Private Use Area characters a lot, and, once I had
>> got used to them, I found them incredibly straightforward to use.
>>
>>
>> I have made fonts that include Private Use Area encodings using the
>> High-Logic FontCreator program and then used those fonts in Serif PagePlus,
>> both to produce PDF documents and PNG graphics, as needed for my particular
>> project at the time.
>>
>>
>> For example,
>>
>>
>> http://forum.high-logic.com/viewtopic.php?f=10&t=2957
>>
>>
>> http://forum.high-logic.com/viewtopic.php?f=10&t=2672
>>
>>
>> William Overington
>>
>>
>>
>>
>> 3 June 2015
>>
>>
>
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