Source: https://github.com/OSGeo/gdal/pull/13664

From 28a15cb76d26a27be96ab8b8bc8fcb52c153c3a9 Mon Sep 17 00:00:00 2001
From: Daeho Ro <40587651+daeho-ro@users.noreply.github.com>
Date: Thu, 8 Jan 2026 22:17:30 +0900
Subject: [PATCH] Backport for poppler 26

---
 frmts/pdf/pdfio.cpp     | 13 +++++++++----
 frmts/pdf/pdfio.h       | 15 +++++++++------
 frmts/pdf/pdfobject.cpp | 12 ++++++++----
 3 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/frmts/pdf/pdfio.cpp b/frmts/pdf/pdfio.cpp
index 39cb1285ef40..32c3263e9219 100644
--- a/frmts/pdf/pdfio.cpp
+++ b/frmts/pdf/pdfio.cpp
@@ -250,8 +250,9 @@ int VSIPDFFileStream::lookChar()
 /*                                reset()                               */
 /************************************************************************/
 
-#if POPPLER_MAJOR_VERSION > 25 ||                                              \
-    (POPPLER_MAJOR_VERSION == 25 && POPPLER_MINOR_VERSION >= 2)
+#if POPPLER_MAJOR_VERSION > 25
+bool VSIPDFFileStream::rewind()
+#elif POPPLER_MAJOR_VERSION == 25 && POPPLER_MINOR_VERSION >= 2
 bool VSIPDFFileStream::reset()
 #else
 void VSIPDFFileStream::reset()
@@ -272,8 +273,12 @@ void VSIPDFFileStream::reset()
 /*                         unfilteredReset()                            */
 /************************************************************************/
 
-#if POPPLER_MAJOR_VERSION > 25 ||                                              \
-    (POPPLER_MAJOR_VERSION == 25 && POPPLER_MINOR_VERSION >= 3)
+#if POPPLER_MAJOR_VERSION > 25
+bool VSIPDFFileStream::unfilteredRewind()
+{
+    return rewind();
+}
+#elif POPPLER_MAJOR_VERSION == 25 && POPPLER_MINOR_VERSION >= 3
 bool VSIPDFFileStream::unfilteredReset()
 {
     return reset();
diff --git a/frmts/pdf/pdfio.h b/frmts/pdf/pdfio.h
index 5fbe3a9dc2ae..1fe289211769 100644
--- a/frmts/pdf/pdfio.h
+++ b/frmts/pdf/pdfio.h
@@ -55,8 +55,9 @@ class VSIPDFFileStream final : public BaseStream
     int getUnfilteredChar() override;
     int lookChar() override;
 
-#if POPPLER_MAJOR_VERSION > 25 ||                                              \
-    (POPPLER_MAJOR_VERSION == 25 && POPPLER_MINOR_VERSION >= 2)
+#if POPPLER_MAJOR_VERSION > 25
+    bool rewind() override;
+#elif POPPLER_MAJOR_VERSION == 25 && POPPLER_MINOR_VERSION >= 2
     bool reset() override;
 #else
     void reset() override;
@@ -64,16 +65,18 @@ class VSIPDFFileStream final : public BaseStream
 
     static void resetNoCheckReturnValue(Stream *str)
     {
-#if POPPLER_MAJOR_VERSION > 25 ||                                              \
-    (POPPLER_MAJOR_VERSION == 25 && POPPLER_MINOR_VERSION >= 2)
+#if POPPLER_MAJOR_VERSION > 25
+        CPL_IGNORE_RET_VAL(str->rewind());
+#elif POPPLER_MAJOR_VERSION == 25 && POPPLER_MINOR_VERSION >= 2
         CPL_IGNORE_RET_VAL(str->reset());
 #else
         str->reset();
 #endif
     }
 
-#if POPPLER_MAJOR_VERSION > 25 ||                                              \
-    (POPPLER_MAJOR_VERSION == 25 && POPPLER_MINOR_VERSION >= 3)
+#if POPPLER_MAJOR_VERSION > 25
+    bool unfilteredRewind() override;
+#elif POPPLER_MAJOR_VERSION == 25 && POPPLER_MINOR_VERSION >= 2
     bool unfilteredReset() override;
 #else
     void unfilteredReset() override;
diff --git a/frmts/pdf/pdfobject.cpp b/frmts/pdf/pdfobject.cpp
index bcd48c016cd8..3fa9f8ca232e 100644
--- a/frmts/pdf/pdfobject.cpp
+++ b/frmts/pdf/pdfobject.cpp
@@ -1409,8 +1409,10 @@ int64_t GDALPDFStreamPoppler::GetLength(int64_t nMaxSize)
     if (m_nLength >= 0)
         return m_nLength;
 
-#if POPPLER_MAJOR_VERSION > 25 ||                                              \
-    (POPPLER_MAJOR_VERSION == 25 && POPPLER_MINOR_VERSION >= 2)
+#if POPPLER_MAJOR_VERSION > 25
+    if (!m_poStream->rewind())
+        return 0;
+#elif POPPLER_MAJOR_VERSION == 25 && POPPLER_MINOR_VERSION >= 2
     if (!m_poStream->reset())
         return 0;
 #else
@@ -1488,8 +1490,10 @@ int64_t GDALPDFStreamPoppler::GetRawLength()
         return m_nRawLength;
 
     auto undecodeStream = m_poStream->getUndecodedStream();
-#if POPPLER_MAJOR_VERSION > 25 ||                                              \
-    (POPPLER_MAJOR_VERSION == 25 && POPPLER_MINOR_VERSION >= 2)
+#if POPPLER_MAJOR_VERSION > 25
+    if (!undecodeStream->rewind())
+        return 0;
+#elif POPPLER_MAJOR_VERSION == 25 && POPPLER_MINOR_VERSION >= 2
     if (!undecodeStream->reset())
         return 0;
 #else