That works on Fedora Rawhide if this is the expected output:
~~~
$ ruby -e "
require 'prawn'
require 'pdf/reader'
require 'pdf/inspector'
Prawn::Document.generate 'test.pdf' do
text 'yo'
end
puts ((PDF::Reader.new 'test.pdf').page 1).text
File.open 'test.pdf' do |fd|
pdf = PDF::Inspector::Text.analyze fd
puts pdf.strings
end
"
yo
yo
$ rpm -q rubygem-{prawn,pdf-{core,inspector,reader}}
rubygem-prawn-2.2.2-4.fc32.noarch
rubygem-pdf-core-0.8.1-4.fc32.noarch
rubygem-pdf-inspector-1.3.0-5.fc32.noarch
rubygem-pdf-reader-2.1.0-5.fc32.noarch
~~~
Vít
Dne 06. 05. 20 v 11:44 Dan Allen napsal(a):
> Here's a test script to prove it:
>
> require 'prawn'
> require 'pdf/reader'
> require 'pdf/inspector'
>
> Prawn::Document.generate 'test.pdf' do
> text 'yo'
> end
>
> puts ((PDF::Reader.new 'test.pdf').page 1).text
>
> File.open 'test.pdf' do |fd|
> pdf = PDF::Inspector::Text.analyze fd
> puts pdf.strings
> end
>
> I ran it on this branch:
> https://github.com/mojavelinux/prawn/tree/2.2.2-pdf-core-0.8.x
>
> Best Regards,
>
> -Dan
>
> On Wed, May 6, 2020 at 3:33 AM Dan Allen <dan.j.al...@gmail.com
> <mailto:dan.j.al...@gmail.com>> wrote:
>
> Vit,
>
> It seems to be due to this change:
>
> https://github.com/prawnpdf/pdf-core/commit/1b179c18359f1642f9294c8c23a8f1be51b48414
>
> This is making the font in the PDF (or at least the font metadata)
> corrupt. A PDF generated using Prawn 2.2.2 w/ pdf-core 0.8.1
> cannot be read by PDF::Reader. It says there's a syntax error.
>
> Syntax Error (221557): Arg #0 to 'Tf' operator is wrong type (string)
> Syntax Error (221565): No font in show
>
> Best Regards,
>
> -Dan
>
> On Wed, May 6, 2020 at 2:53 AM Vít Ondruch <vondr...@redhat.com
> <mailto:vondr...@redhat.com>> wrote:
>
> Dan, thx for looking into this. Do you have more details? Is
> there some patch we need to add on top of Prawn to fix this? I
> am asking because I am not sure there is easy way do revert
> the pdf-core update (we can always bump epoch, but this sucks
> for other reasons).
>
>
> Vít
>
>
> Dne 06. 05. 20 v 10:31 Dan Allen napsal(a):
>> I've done some tests and what I've determined is that prawn
>> 2.2.2 is incompatible with pdf-core 0.8.1. These gems are
>> extremely tightly coupled because they're essentially one
>> library. Thus, I think it's a mistake for Fedora to be
>> packaging pdf-core 0.8.1 at this time. It should either wait
>> for the next release of Prawn or package the prerelease from
>> master (which is tested against pdf-core 0.8.1).
>>
>> Best Regards,
>>
>> -Dan
>>
>> --
>> Dan Allen | @mojavelinux | https://twitter.com/mojavelinux
>>
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>
> --
> Dan Allen | @mojavelinux | https://twitter.com/mojavelinux
>
>
>
> --
> Dan Allen | @mojavelinux | https://twitter.com/mojavelinux
>
> _______________________________________________
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