diff --git a/download_package.sh b/download_package.sh
index 2440dd3..ddab8df 100755
--- a/download_package.sh
+++ b/download_package.sh
@@ -1,2 +1,2 @@
 dotnet build src/PDFiumCoreBindingsGenerator/PDFiumCoreBindingsGenerator.csproj -c Release
-dotnet ./src/PDFiumCoreBindingsGenerator/bin/Release/net6.0/PDFiumCoreBindingsGenerator.dll 148145837 false
+dotnet ./src/PDFiumCoreBindingsGenerator/bin/Release/net6.0/PDFiumCoreBindingsGenerator.dll 153551063 false
diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index 259406b..db969a3 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project>
   <PropertyGroup>
-    <Version>125.0.6378.0</Version>
+    <Version>126.0.6447.0</Version>
   </PropertyGroup>
 </Project>
diff --git a/src/PDFiumCore/PDFiumCore.cs b/src/PDFiumCore/PDFiumCore.cs
index 7cb42ed..56af243 100644
--- a/src/PDFiumCore/PDFiumCore.cs
+++ b/src/PDFiumCore/PDFiumCore.cs
@@ -1,7 +1,7 @@
-// Built from precompiled binaries at https://github.com/bblanchon/pdfium-binaries/releases/tag/chromium/6378
-// Github release api https://api.github.com/repos/bblanchon/pdfium-binaries/releases/148145837
-// PDFium version v125.0.6378.0 chromium/6378 [master]
-// Built on: Wed, 27 Mar 2024 15:55:45 GMT
+// Built from precompiled binaries at https://github.com/bblanchon/pdfium-binaries/releases/tag/chromium/6447
+// Github release api https://api.github.com/repos/bblanchon/pdfium-binaries/releases/153551063
+// PDFium version v126.0.6447.0 chromium/6447 [master]
+// Built on: Tue, 30 Apr 2024 21:51:43 GMT
 // ----------------------------------------------------------------------------
 // <auto-generated>
 // This is autogenerated code by CppSharp.
@@ -14212,12 +14212,12 @@ public static int FPDFTextGetCharIndexAtPos(global::PDFiumCore.FpdfTextpageT tex
         /// <para>Parameters:</para>
         /// <para>text_page   -   Handle to a text page information structure. Returned by FPDFText_LoadPage function.</para>
         /// <para>start_index -   Index for the start characters.</para>
-        /// <para>count       -   Number of characters to be extracted.</para>
-        /// <para>result      -   A buffer (allocated by application) receiving the extracted unicodes. The size of the buffer must be able to hold the number of characters plus a terminator.</para>
+        /// <para>count       -   Number of UCS-2 values to be extracted.</para>
+        /// <para>result      -   A buffer (allocated by application) receiving the extracted UCS-2 values. The buffer must be able to hold `count` UCS-2 values plus a terminator.</para>
         /// <para>Return Value:</para>
         /// <para>Number of characters written into the result buffer, including the</para>
         /// <para>trailing terminator.</para>
-        /// <para>Comments: This function ignores characters without unicode information. It returns all characters on the page, even those that are not visible when the page has a cropbox. To filter out the characters outside of the cropbox, use FPDF_GetPageBoundingBox() and FPDFText_GetCharBox().</para>
+        /// <para>Comments: This function ignores characters without UCS-2 representations. It considers all characters on the page, even those that are not visible when the page has a cropbox. To filter out the characters outside of the cropbox, use FPDF_GetPageBoundingBox() and FPDFText_GetCharBox().</para>
         /// </summary>
         public static int FPDFTextGetText(global::PDFiumCore.FpdfTextpageT text_page, int start_index, int count, ref ushort result)
         {
@@ -14300,19 +14300,19 @@ public static int FPDFTextGetRect(global::PDFiumCore.FpdfTextpageT text_page, in
         /// <para>top         -   Top boundary.</para>
         /// <para>right       -   Right boundary.</para>
         /// <para>bottom      -   Bottom boundary.</para>
-        /// <para>buffer      -   A unicode buffer.</para>
-        /// <para>buflen      -   Number of characters (not bytes) for the buffer, excluding an additional terminator.</para>
+        /// <para>buffer      -   Caller-allocated buffer to receive UTF-16 values.</para>
+        /// <para>buflen      -   Number of UTF-16 values (not bytes) that `buffer` is capable of holding.</para>
         /// <para>Return Value:</para>
-        /// <para>If buffer is NULL or buflen is zero, return number of characters</para>
-        /// <para>(not bytes) of text present within the rectangle, excluding a</para>
-        /// <para>terminating NUL. Generally you should pass a buffer at least one</para>
+        /// <para>If buffer is NULL or buflen is zero, return number of UTF-16</para>
+        /// <para>values (not bytes) of text present within the rectangle, excluding</para>
+        /// <para>a terminating NUL. Generally you should pass a buffer at least one</para>
         /// <para>larger than this if you want a terminating NUL, which will be</para>
-        /// <para>provided if space is available. Otherwise, return number of</para>
-        /// <para>characters copied into the buffer, including the terminating NUL</para>
-        /// <para>when space for it is available.</para>
+        /// <para>provided if space is available. Otherwise, return number of UTF-16</para>
+        /// <para>values copied into the buffer, including the terminating NUL when</para>
+        /// <para>space for it is available.</para>
         /// <para>Comment:</para>
         /// <para>If the buffer is too small, as much text as will fit is copied into</para>
-        /// <para>it.</para>
+        /// <para>it. May return a split surrogate in that case.</para>
         /// </summary>
         public static int FPDFTextGetBoundedText(global::PDFiumCore.FpdfTextpageT text_page, double left, double top, double right, double bottom, ref ushort buffer, int buflen)
         {