[
https://issues.apache.org/jira/browse/PDFBOX-5713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17785805#comment-17785805
]
Jaromír Dobrý edited comment on PDFBOX-5713 at 11/14/23 8:58 AM:
-----------------------------------------------------------------
Thank you for the PFB specification. I can make following fix:
* Accept ascii segments (public) followed by binary ones (encrypted) and then
possibly the trailer ascii and EOF.
* The parser will combine the ascii segments into segment1 and all binary
segments into segment2 the rest will be thrown away (as it already is now).
* All other mixtures will result in an IOException (Incorrect record type -
maybe better message about this being an unsupported font format rather than
invalid).
I hope this will work practically for all the fonts and will not break any
other functionality of fontbox.
EDIT: Looking at the changes in *.diff file, I've found that this is probably
what exactly I've already sent...
was (Author: JIRAUSER283200):
Thank you for the PFB specification. I can make following fix:
* Accept ascii segments (public) followed by binary ones (encrypted) and then
possibly the trailer ascii and EOF.
* The parser will combine the ascii segments into segment1 and all binary
segments into segment2 the rest will be thrown away (as it already is now).
* All other mixtures will result in an IOException (Incorrect record type -
maybe better message about this being an unsupported font format rather than
invalid).
I hope this will work practically for all the fonts and will not break any
other functionality of fontbox.
> PfbParser fails to parse PFB font with multiple binary records.
> ---------------------------------------------------------------
>
> Key: PDFBOX-5713
> URL: https://issues.apache.org/jira/browse/PDFBOX-5713
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox
> Affects Versions: 3.0.0 PDFBox
> Reporter: Jaromír Dobrý
> Priority: Major
> Attachments: 5040.Download_Fonts.pdf, DejaVuSerifCondensed.pfb,
> PDFBOX-5713.diff, type1_embedded.pdf
>
>
> * The attached PFB font can be opened in FontForge but PfbParser in fontbox
> fails to read it.
> * The problem is that fontbox assumes there are three records (ascii,
> binary, ascii) in the PFB file but the binary part is split into multiple
> shorter chunks (i.e. ascii, binary, ..., binary, ascii).
> * I didn't find that this is forbidden and according to FontForge behavior
> it seems to be valid.
> * The fix seems to be easy, it is probably sufficient to concatenate the
> binary records together in PfbParser and the result will work correctly.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
