diff --git a/YACReader/YACReader.pro b/YACReader/YACReader.pro
index 9999d305..248a266e 100644
--- a/YACReader/YACReader.pro
+++ b/YACReader/YACReader.pro
@@ -54,8 +54,12 @@ win32 {
             INCLUDEPATH += ../dependencies/poppler/include/qt5
 	    } else {
 	    DEFINES += "USE_PDFIUM"
-	    LIBS += -L$$PWD../dependencies/pdfium/x86 -lpdfium
-	    INCLUDEPATH += $$PWD../dependencies/pdfium/public
+	    contains(QMAKE_TARGET.arch, x86_64): {
+	        LIBS += -L$$PWD/../dependencies/pdfium/x64 -lpdfium
+	        } else {
+		LIBS += -L$$PWD/../dependencies/pdfium/x86 -lpdfium
+	    }
+	    INCLUDEPATH += ../dependencies/pdfium/public
 	    }
     } else {
         DEFINES += "NO_PDF"
diff --git a/YACReaderLibrary/YACReaderLibrary.pro b/YACReaderLibrary/YACReaderLibrary.pro
index 3fd3c5e4..ff3ceff6 100644
--- a/YACReaderLibrary/YACReaderLibrary.pro
+++ b/YACReaderLibrary/YACReaderLibrary.pro
@@ -37,15 +37,18 @@ win32 {
         LIBS += -L../dependencies/poppler/lib -loleaut32 -lole32 -lshell32 -lopengl32 -lglu32 -luser32
     }
 
-    #TODO: pdfium for windows support
     !CONFIG(no_pdf) {
         !CONFIG(pdfium) {
             LIBS += -lpoppler-qt5
             INCLUDEPATH += ../dependencies/poppler/include/qt5
 	    } else {
 	    DEFINES += "USE_PDFIUM"
-	    LIBS += -L$$PWD../dependencies/pdfium/x86 -lpdfium
-	    INCLUDEPATH += $$PWD../dependencies/pdfium/public
+	    contains(QMAKE_TARGET.arch, x86_64): {
+	        LIBS += -L$$PWD/../dependencies/pdfium/x64 -lpdfium
+	        } else {
+		LIBS += -L$$PWD/../dependencies/pdfium/x86 -lpdfium
+	    } 
+	    INCLUDEPATH += ../dependencies/pdfium/public
 	    }
     } else {
         DEFINES += "NO_PDF"
diff --git a/YACReaderLibraryServer/YACReaderLibraryServer.pro b/YACReaderLibraryServer/YACReaderLibraryServer.pro
index dab24bd8..78d9ad58 100644
--- a/YACReaderLibraryServer/YACReaderLibraryServer.pro
+++ b/YACReaderLibraryServer/YACReaderLibraryServer.pro
@@ -25,8 +25,12 @@ win32 {
             INCLUDEPATH += ../dependencies/poppler/include/qt5
 	    } else {
 	    DEFINES += "USE_PDFIUM"
-	    LIBS += -L$$PWD../dependencies/pdfium/x86 -lpdfium
-	    INCLUDEPATH += $$PWD../dependencies/pdfium/public
+	    contains(QMAKE_TARGET.arch, x86_64): {
+	        LIBS += -L$$PWD/../dependencies/pdfium/x64 -lpdfium
+	        } else {
+		LIBS += -L$$PWD/../dependencies/pdfium/x86 -lpdfium
+	    }
+	    INCLUDEPATH += ../dependencies/pdfium/public
 	    }
     } else {
         DEFINES += "NO_PDF"
diff --git a/dependencies/pdfium/x64/pdfium.dll b/dependencies/pdfium/x64/pdfium.dll
index 49a353ff..005b03fb 100644
Binary files a/dependencies/pdfium/x64/pdfium.dll and b/dependencies/pdfium/x64/pdfium.dll differ
diff --git a/dependencies/pdfium/x64/pdfium.lib b/dependencies/pdfium/x64/pdfium.lib
index 576cc804..49e8c538 100644
Binary files a/dependencies/pdfium/x64/pdfium.lib and b/dependencies/pdfium/x64/pdfium.lib differ