https://gitlab.archlinux.org/archlinux/packaging/packages/libreoffice-fresh/-/blob/main/poppler24.12-buildfix.patch?ref_type=heads

--- libreoffice-25.2.0.1/sdext/source/pdfimport/xpdfwrapper/pdfioutdev_gpl.cxx
+++ libreoffice-25.2.0.1/sdext/source/pdfimport/xpdfwrapper/pdfioutdev_gpl.cxx
@@ -1096,17 +1096,18 @@
     if (m_bSkipImages)
         return;
     OutputBuffer aBuf; initBuf(aBuf);
 
     printf( "drawMask %d %d %d", width, height, invert );
 
     int bitsPerComponent = 1;
     StreamColorSpaceMode csMode = streamCSNone;
-    str->getImageParams( &bitsPerComponent, &csMode );
+    bool hasAlpha = false;
+    str->getImageParams( &bitsPerComponent, &csMode, &hasAlpha );
     if( bitsPerComponent == 1 && (csMode == streamCSNone || csMode == streamCSDeviceGray) )
     {
         GfxRGB oneColor = { dblToCol( 1.0 ), dblToCol( 1.0 ), dblToCol( 1.0 ) };
         GfxRGB zeroColor = { dblToCol( 0.0 ), dblToCol( 0.0 ), dblToCol( 0.0 ) };
         pState->getFillColorSpace()->getRGB( pState->getFillColor(), &zeroColor );
         if( invert )
             writePng_( aBuf, str, width, height, oneColor, zeroColor, true );
         else
@@ -1313,19 +1314,19 @@
     }
 
     std::unique_ptr<MemStream> pRgbStr(new MemStream(pBitmapData, 0,
         nBitmapWidth * nBitmapHeight * 3, Object(objNull)));
     std::unique_ptr<MemStream> pAlphaStr(new MemStream(reinterpret_cast<char *>(pSplashBitmap->getAlphaPtr()),
         0, nBitmapWidth * nBitmapHeight, Object(objNull)));
     auto aDecode = Object(objNull);
     std::unique_ptr<GfxImageColorMap> pRgbIdentityColorMap(new GfxImageColorMap(8, &aDecode,
-        new GfxDeviceRGBColorSpace()));
+        std::make_unique<GfxDeviceRGBColorSpace>()));
     std::unique_ptr<GfxImageColorMap> pGrayIdentityColorMap(new GfxImageColorMap(8, &aDecode,
-        new GfxDeviceGrayColorSpace()));
+        std::make_unique<GfxDeviceGrayColorSpace>()));
 
     OutputBuffer aBuf; initBuf(aBuf);
     writePng_(aBuf, pRgbStr.get(), nBitmapWidth, nBitmapHeight, pRgbIdentityColorMap.get(),
         pAlphaStr.get(), nBitmapWidth, nBitmapHeight, pGrayIdentityColorMap.get());
     writeBinaryBuffer(aBuf);
 
     // If we return false here we can fall back to the slow path
     return true;