Create a new blank document

PdfExampleGenerator/PdfExampleGenerator.pro

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+QT += gui
+
+CONFIG += c++11 console
+CONFIG -= app_bundle
+
+# The following define makes your compiler emit warnings if you use
+# any Qt feature that has been marked deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if it uses deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+QMAKE_CXXFLAGS += /std:c++latest /utf-8
+
+INCLUDEPATH += $$PWD/../PDFForQtLib/Sources
+
+DESTDIR = $$OUT_PWD/..
+
+LIBS += -L$$OUT_PWD/..
+
+LIBS += -lPDFForQtLib
+
+SOURCES += \
+        main.cpp \
+        pdfexamplesgenerator.cpp
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target
+
+HEADERS += \
+    pdfexamplesgenerator.h

PdfExampleGenerator/main.cpp

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+//    Copyright (C) 2020 Jakub Melka
+//
+//    This file is part of PdfForQt.
+//
+//    PdfForQt is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Lesser General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    PdfForQt is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public License
+//    along with PDFForQt.  If not, see <https://www.gnu.org/licenses/>.
+
+#include <QCoreApplication>
+
+#include "pdfexamplesgenerator.h"
+
+int main(int argc, char *argv[])
+{
+    QCoreApplication a(argc, argv);
+    PDFExamplesGenerator::generateAnnotationsExample();
+}

PdfExampleGenerator/pdfexamplesgenerator.cpp

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+//    Copyright (C) 2020 Jakub Melka
+//
+//    This file is part of PdfForQt.
+//
+//    PdfForQt is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Lesser General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    PdfForQt is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public License
+//    along with PDFForQt.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "pdfexamplesgenerator.h"
+
+#include "pdfdocumentbuilder.h"
+#include "pdfdocumentwriter.h"
+
+void PDFExamplesGenerator::generateAnnotationsExample()
+{
+    pdf::PDFDocumentBuilder builder;
+
+    builder.appendPage(QRectF(0, 0, 400, 400));
+
+    // Write result to a file
+    pdf::PDFDocument document = builder.build();
+    pdf::PDFDocumentWriter writer(nullptr);
+    writer.write("Ex_Annotations.pdf", &document);
+}

PdfExampleGenerator/pdfexamplesgenerator.h

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+//    Copyright (C) 2020 Jakub Melka
+//
+//    This file is part of PdfForQt.
+//
+//    PdfForQt is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Lesser General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    PdfForQt is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public License
+//    along with PDFForQt.  If not, see <https://www.gnu.org/licenses/>.
+
+#ifndef PDFEXAMPLESGENERATOR_H
+#define PDFEXAMPLESGENERATOR_H
+
+class PDFExamplesGenerator
+{
+public:
+    explicit PDFExamplesGenerator() = delete;
+
+    static void generateAnnotationsExample();
+};
+
+#endif // PDFEXAMPLESGENERATOR_H