diff --git a/Makefile b/Makefile
index 6e7cd42..6b54267 100644
--- a/Makefile
+++ b/Makefile
@@ -26,7 +26,7 @@ DSONAME		=
 LDFLAGS		=
 LIBS		=	-lm -lz
 RANLIB		=	ranlib
-VERSION		=	1.0b2
+VERSION		=	1.0rc1
 prefix		=	/usr/local
 
 
diff --git a/doc/pdfio.3 b/doc/pdfio.3
index 667b494..c5adebd 100644
--- a/doc/pdfio.3
+++ b/doc/pdfio.3
@@ -1,4 +1,4 @@
-.TH pdfio 3 "pdf read/write library" "2021-10-25" "pdf read/write library"
+.TH pdfio 3 "pdf read/write library" "2021-11-30" "pdf read/write library"
 .SH NAME
 pdfio \- pdf read/write library
 .SH Introduction
diff --git a/doc/pdfio.html b/doc/pdfio.html
index 7cf94de..475df1a 100644
--- a/doc/pdfio.html
+++ b/doc/pdfio.html
@@ -1,13 +1,13 @@
 <!DOCTYPE html>
 <html lang="en-US">
 <head>
-<title>PDFio Programming Manual v1.0.0</title>
+<title>PDFio Programming Manual v1.0rc1</title>
 <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
 <meta name="generator" content="codedoc v3.7">
 <meta name="author" content="Michael R Sweet">
 <meta name="language" content="en-US">
 <meta name="copyright" content="Copyright © 2021 by Michael R Sweet">
-<meta name="version" content="1.0.0">
+<meta name="version" content="1.0rc1">
 <style type="text/css"><!--
 body {
   background: white;
@@ -245,7 +245,7 @@ span.string {
 <body>
 <div class="header">
 <p><img class="title" src="pdfio-512.png"></p>
-<h1 class="title">PDFio Programming Manual v1.0.0</h1>
+<h1 class="title">PDFio Programming Manual v1.0rc1</h1>
 <p>Michael R Sweet</p>
 <p>Copyright © 2021 by Michael R Sweet</p>
 </div>
diff --git a/pdfio.vcxproj b/pdfio.vcxproj
index f4be525..d23662c 100644
--- a/pdfio.vcxproj
+++ b/pdfio.vcxproj
@@ -87,7 +87,7 @@
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
       <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>PDFIO_VERSION="1.0b2";WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>PDFIO_VERSION="1.0rc1";WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
     </ClCompile>
     <Link>
@@ -101,7 +101,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>PDFIO_VERSION="1.0b2";WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>PDFIO_VERSION="1.0rc1";WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
     </ClCompile>
     <Link>
@@ -115,7 +115,7 @@
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
       <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>PDFIO_VERSION="1.0b2";_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>PDFIO_VERSION="1.0rc1";_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
     </ClCompile>
     <Link>
@@ -130,7 +130,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>PDFIO_VERSION="1.0b2";NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>PDFIO_VERSION="1.0rc1";NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
     </ClCompile>
     <Link>
diff --git a/pdfio_native.nuspec b/pdfio_native.nuspec
index 74e8f6f..411d83b 100644
--- a/pdfio_native.nuspec
+++ b/pdfio_native.nuspec
@@ -3,7 +3,7 @@
     <metadata>
         <id>pdfio_native</id>
         <title>PDFio Library for VS2019+</title>
-        <version>1.0.0-b7</version>
+        <version>1.0.0-rc1</version>
         <authors>Michael R Sweet</authors>
         <owners>michaelrsweet</owners>
         <projectUrl>https://github.com/michaelrsweet/pappl</projectUrl>
@@ -16,7 +16,7 @@
         <copyright>Copyright © 2019-2021 by Michael R Sweet</copyright>
         <tags>pdf file native</tags>
 	<dependencies>
-	    <dependency id="pdfio_native.redist" version="1.0.0-b7" />
+	    <dependency id="pdfio_native.redist" version="1.0.0-rc1" />
 	    <dependency id="zlib_native.redist" version="1.2.11" />
 	</dependencies>
     </metadata>
diff --git a/pdfio_native.redist.nuspec b/pdfio_native.redist.nuspec
index c33b979..3ce92e5 100644
--- a/pdfio_native.redist.nuspec
+++ b/pdfio_native.redist.nuspec
@@ -3,7 +3,7 @@
     <metadata>
         <id>pdfio_native.redist</id>
         <title>PDFio Library for VS2019+</title>
-        <version>1.0.0-b7</version>
+        <version>1.0.0-rc1</version>
         <authors>Michael R Sweet</authors>
         <owners>michaelrsweet</owners>
         <projectUrl>https://github.com/michaelrsweet/pappl</projectUrl>
