This patch adds support for Poppler 0.76 and later.

Taken from upstream:
<https://gitlab.com/inkscape/inkscape/commit/e831b034746f8dc3c3c1b88372751f6dcb974831>

diff --git a/src/extension/internal/pdfinput/pdf-parser.cpp b/src/extension/internal/pdfinput/pdf-parser.cpp
index 8484984bdf..4f798e35bf 100644
--- a/src/extension/internal/pdfinput/pdf-parser.cpp
+++ b/src/extension/internal/pdfinput/pdf-parser.cpp
@@ -421,7 +421,7 @@ void PdfParser::parse(Object *obj, GBool topLevel) {
 	error(errInternal, -1, "Weird page contents");
     	return;
   }
-  parser = new Parser(xref, new Lexer(xref, obj), gFalse);
+  parser = new _POPPLER_NEW_PARSER(xref, obj);
   go(topLevel);
   delete parser;
   parser = nullptr;
diff --git a/src/extension/internal/pdfinput/poppler-transition-api.h b/src/extension/internal/pdfinput/poppler-transition-api.h
index 61a15083a0..5e8bc4ae90 100644
--- a/src/extension/internal/pdfinput/poppler-transition-api.h
+++ b/src/extension/internal/pdfinput/poppler-transition-api.h
@@ -14,6 +14,13 @@
 
 #include <glib/poppler-features.h>
 
+#if POPPLER_CHECK_VERSION(0, 76, 0)
+#define _POPPLER_NEW_PARSER(xref, obj) Parser(xref, obj, gFalse)
+#else
+#define _POPPLER_NEW_PARSER(xref, obj) Parser(xref, new Lexer(xref, obj), gFalse)
+#endif
+
+
 #if POPPLER_CHECK_VERSION(0, 72, 0)
 #define getCString c_str
 #endif
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<tr><td><span title='2023-07-18 18:16:47 +0200'>2023-07-18</span></td><td><a href='/guix/commit/gnu/packages/fsf.scm?id=7a18bd9e74b56a04ec7e4e120789e91d78830444'>gnu: Rationalize texlive-updmap.cfg and texlive-tiny inputs.</a><span class='msg-avail'>...<span class='msg-tooltip'>TEXLIVE-UPDMAP.CFG and TEXLIVE-TINY should only be used as native inputs.
Also remove texlive packages already provided by them.

* doc/build.scm (pdf-manual):
* gnu/packages/algebra.scm (pari-gp):
* gnu/packages/bioinformatics.scm (discrover):
(phyml):
(velvet):
* gnu/packages/chemistry.scm (yaehmop):
* gnu/packages/chez.scm (stex-bootstrap):
(chez-web):
(chez-sockets):
* gnu/packages/cran.scm (r-prereg):
* gnu/packages/docbook.scm (dblatex):
* gnu/packages/emacs-xyz.scm (emacs-auctex):
* gnu/packages/engineering.scm (fastcap):
* gnu/packages/fsf.scm (book-faif):
* gnu/packages/graphviz.scm (dot2tex):
* gnu/packages/maths.scm (hypre):
* gnu/packages/ocaml.scm (unison):
(ocaml-bibtex2html):
* gnu/packages/plotutils.scm (asymptote):
* gnu/packages/python-xyz.scm (python-nbconvert):
(python-pypandoc):
* gnu/packages/radio.scm (gnuradio):
(libosmo-dsp):
* gnu/packages/statistics.scm (r-with-tests):
* gnu/packages/tex.scm (texlive-makecmds):
(texlive-innerscript):
(teximpatient):
(texlive-xkeyval): Remove texlive packages already provided by
TEXLIVE-UPDMAP.CFG.  Don't add TEXLIVE-TINY or TEXLIVE-UPDMAP.CFG as inputs.
</span></span></td><td>Nicolas Goaziou</td></tr>
<tr><td><span title='2023-07-18 18:12:48 +0200'>2023-07-18</span></td><td><a href='/guix/commit/gnu/packages/fsf.scm?id=f4dadc5b496e34bd660caace3e66e530bb353b38'>gnu: faif: Update texlive package names.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/fsf.scm (book-faif)[native-inputs]: Replace TEXLIVE-FONTS-EC,
TEXLIVE-LATEX-FNCYCHAP, TEXLIVE-LATEX-GEOMETRY, TEXLIVE-LATEX-UCS with
TEXLIVE-EC, TEXLIVE-FNCYCHAP, TEXLIVE-GEOMETRY, TEXLIVE-UCS.
</span></span></td><td>Nicolas Goaziou</td></tr>
<tr><td><span title='2023-05-12 20:22:02 +0800'>2023-05-12</span></td><td><a href='/guix/commit/gnu/packages/fsf.scm?id=6419ca7fd75afb16cbff5725e99ec8d2e642a078'>gnu: Add Free as in Freedom (2.0).</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/fsf.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
</span></span></td><td>宋文武</td></tr>