[Libreoffice-bugs] [Bug 108222] New: PDF Form: Bad characters metrics?

[b***@bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=108222

Bug ID: 108222
Summary: PDF Form: Bad characters metrics?
Product: LibreOffice
Version: 5.2.6.2 release
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Writer
Assignee: libreoffice-***@lists.freedesktop.org
Reporter: ***@redhat.com

Created attachment 133695
--> https://bugs.documentfoundation.org/attachment.cgi?id=133695&action=edit
Example form demonstrating the bug

In PDF Forms created with LibreOffice, some accented and special characters are
displayed incorrectly: they can be entered normally, but when leaving the
field, they are displayed as if they had zero width, printing one character
over the other.

This includes relatively common characters like "
" (HORIZONTAL ELLIPSIS) and
"Å¡" (LATIN SMALL LETTER S WITH CARON).

I have checked the following things:

* LibreOffice itself displays those characters correctly.

* The bug is in the created PDF file, not in the PDF viewer: different PDF
viewers all do not display those characters correctly.

* PDF forms created by other programs do not exhibit this bug.

* This bug exists in various versions of OpenOffice and LibreOffice.

* Changing the font does not have an effect.

* Changing the PDF export options does not help.

[b***@bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=108222

--- Comment #1 from Andreas Gruenbacher <***@redhat.com> ---
Created attachment 133696
--> https://bugs.documentfoundation.org/attachment.cgi?id=133696&action=edit
Example form demonstrating the bug: source odt

[b***@bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=108222

Andreas Gruenbacher <***@redhat.com> changed:

What |Removed |Added
----------------------------------------------------------------------------
Attachment #133695|Example form demonstrating |Example form demonstrating
description|the bug |the bug: pdf

[b***@bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=108222

--- Comment #2 from Andreas Gruenbacher <***@redhat.com> ---
Created attachment 133697
--> https://bugs.documentfoundation.org/attachment.cgi?id=133697&action=edit
Screenshot of bug in PDF viewer

Here, field1 contains the string "š A", but all three characters are rendered
on top of each other. (The character A itself would render correctly.)

[b***@bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=108222

Xisco Faulí <***@libreoffice.org> changed:

What |Removed |Added
----------------------------------------------------------------------------
Keywords| |filter:pdf
Status|UNCONFIRMED |NEW
CC| |***@libreoffice.org
Component|Writer |Printing and PDF export
Version|5.2.6.2 release |Inherited From OOo
Ever confirmed|0 |1

--- Comment #3 from Xisco Faulí <***@libreoffice.org> ---
Confirmed in

Version: 5.5.0.0.alpha0+
Build ID: 9956849c2ea6049582e2ccf04c355542c1ef00a1
CPU Threads: 4; OS Version: Linux 4.8; UI Render: default; VCL: gtk3;
Locale: ca-ES (ca_ES.UTF-8); Calc: group

and

LibreOffice 3.3.0
OOO330m19 (Build:6)
tag libreoffice-3.3.0.4

[b***@bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=108222

Andreas Gruenbacher <***@redhat.com> changed:

What |Removed |Added
----------------------------------------------------------------------------
Depends on| |98479


Referenced Bugs:

https://bugs.documentfoundation.org/show_bug.cgi?id=98479
[Bug 98479] Exported PDF Form Text box containing punctuation / diacritic not
displaying/printing some characters

[b***@bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=108222

--- Comment #4 from Andreas Gruenbacher <***@redhat.com> ---
The bug still exists in LibreOffice 5.4.4, which probably isn't surprising
given that Xisco could reproduce in 5.5.0.0.alpha0+.

Bug 98479 seems to describe the same problem --- characters like Å¡, 
, and €
that are printed on top of each other --- but apparently there are also
characters like Ř and Å€ that "disappear" completely.

Could a kind soul familiar with the PDF file format perhaps diagnose what's
wrong with the generated PDF files? Thanks a lot!

[b***@bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=108222

Roman Kuznetsov <***@mail.ru> changed:

What |Removed |Added
----------------------------------------------------------------------------
Blocks| |103378, 107742


Referenced Bugs:

https://bugs.documentfoundation.org/show_bug.cgi?id=103378
[Bug 103378] [META] PDF export bugs and enhancements
https://bugs.documentfoundation.org/show_bug.cgi?id=107742
[Bug 107742] [META] Form control bugs and enhancements