From 2b81bd6f2461aa2d96c0dd7f78989eac68274780 Mon Sep 17 00:00:00 2001
From: Chenx221 <chenx221@yandex.com>
Date: Sun, 27 Aug 2023 20:55:18 +0800
Subject: [PATCH] =?UTF-8?q?=E5=86=85=E5=AD=98=E5=8D=A0=E7=94=A8=E9=97=AE?=
 =?UTF-8?q?=E9=A2=98=E5=BE=97=E5=88=B0=E4=B8=80=E5=AE=9A=E7=BC=93=E8=A7=A3?=
 =?UTF-8?q?=20=E4=BD=86=E4=B8=8D=E6=8E=92=E9=99=A4=E6=BD=9C=E5=9C=A8?=
 =?UTF-8?q?=E7=9A=84=E5=86=85=E5=AD=98=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ConsoleApp1/ConsoleApp1/ConsoleApp1.csproj |  1 +
 ConsoleApp1/ConsoleApp1/Program.cs         | 10 ++++++----
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/ConsoleApp1/ConsoleApp1/ConsoleApp1.csproj b/ConsoleApp1/ConsoleApp1/ConsoleApp1.csproj
index ff17da3..d0f1e74 100644
--- a/ConsoleApp1/ConsoleApp1/ConsoleApp1.csproj
+++ b/ConsoleApp1/ConsoleApp1/ConsoleApp1.csproj
@@ -35,6 +35,7 @@
     <FileVersion>1.0.0.2</FileVersion>
     <SupportedOSPlatformVersion>7.0</SupportedOSPlatformVersion>
     <StartupObject>ConsoleApp1.Program</StartupObject>
+    <PlatformTarget>AnyCPU</PlatformTarget>
   </PropertyGroup>
   <ItemGroup>
     <BootstrapperPackage Include=".NETFramework,Version=v4.8.1">
diff --git a/ConsoleApp1/ConsoleApp1/Program.cs b/ConsoleApp1/ConsoleApp1/Program.cs
index 1948dee..0df1cd5 100644
--- a/ConsoleApp1/ConsoleApp1/Program.cs
+++ b/ConsoleApp1/ConsoleApp1/Program.cs
@@ -8,8 +8,6 @@ using System.Linq;
 using System.Collections.Generic;
 using System.Text.RegularExpressions;
 using System.Text;
-using iText.Kernel.Geom;
-using iText.Layout.Properties;
 
 namespace ConsoleApp1
 {
@@ -95,8 +93,8 @@ namespace ConsoleApp1
                     UpdateProgressBar(currentImageIndex, totalImageCount);
 
                     Image image = new(ImageDataFactory.Create(imageFile));
-                    //image.SetAutoScale(true);
-                    //image.SetHorizontalAlignment(HorizontalAlignment.CENTER);
+
+                    // 合适的缩放
                     float widthRatio = pdfDocument.GetDefaultPageSize().GetWidth() / image.GetImageWidth();
                     float heightRatio = pdfDocument.GetDefaultPageSize().GetHeight() / image.GetImageHeight();
                     float ratio = Math.Min(widthRatio, heightRatio);
@@ -108,6 +106,9 @@ namespace ConsoleApp1
                     image.SetFixedPosition(x, y);
                     doc.Add(image);
 
+                    GC.Collect();
+                    //image = null;
+
                     // 在除最后一张图像外的图像后添加空白页面
                     if (currentImageIndex < totalImageCount - 1)
                     {
@@ -118,6 +119,7 @@ namespace ConsoleApp1
                 }
 
                 // 关闭文档
+                //doc.Close(); //这里会导致内存无法自动回收
                 pdfDocument.Close();
                 pdfWriter.Close();