QPdfDocument Class
The QPdfDocument class loads a PDF document and renders pages from it. More...
| Header: | #include <QPdfDocument> |
| Since: | Qt 5.10 |
| Inherits: | QObject |
This class was introduced in Qt 5.10.
Public Types
| enum | MetaDataField { Title, Author, Subject, Keywords, Creator, …, ModificationDate } |
| enum | Status { Null, Loading, Ready, Unloading, Error } |
Public Functions
| QPdfDocument(QObject *parent = nullptr) | |
| virtual | ~QPdfDocument() |
| void | close() |
| QPdfSelection | getAllText(int page) |
| QPdfSelection | getSelection(int page, QPointF start, QPointF end) |
| QPdfSelection | getSelectionAtIndex(int page, int startIndex, int maxLength) |
| QVariant | metaData(QPdfDocument::MetaDataField field) const |
| int | pageCount() const |
| QString | password() const |
| QImage | render(int page, QSize imageSize, QPdfDocumentRenderOptions renderOptions = QPdfDocumentRenderOptions()) |
| void | setPassword(const QString &password) |
| QPdfDocument::Status | status() const |
Signals
| void | pageCountChanged(int pageCount) |
| void | passwordChanged() |
| void | statusChanged(QPdfDocument::Status status) |
Member Type Documentation
enum QPdfDocument::MetaDataField
This enum describes the available fields of meta data.
| Constant | Value | Description |
|---|---|---|
QPdfDocument::Title | 0 | The document's title as QString. |
QPdfDocument::Author | 2 | The name of the person who created the document as QString. |
QPdfDocument::Subject | 1 | The subject of the document as QString. |
QPdfDocument::Keywords | 3 | Keywords associated with the document as QString. |
QPdfDocument::Creator | 5 | If the document was converted to PDF from another format, the name of the conforming product that created the original document from which it was converted as QString. |
QPdfDocument::Producer | 4 | If the document was converted to PDF from another format, the name of the conforming product that converted it to PDF as QString. |
QPdfDocument::CreationDate | 6 | The date and time the document was created as QDateTime. |
QPdfDocument::ModificationDate | 7 | The date and time the document was most recently modified as QDateTime. |
See also QPdfDocument::metaData().
enum QPdfDocument::Status
This enum describes the current status of the document.
| Constant | Value | Description |
|---|---|---|
QPdfDocument::Null | 0 | The initial status after the document has been created or after it has been closed. |
QPdfDocument::Loading | 1 | The status after load() has been called and before the document is fully loaded. |
QPdfDocument::Ready | 2 | The status when the document is fully loaded and its data can be accessed. |
QPdfDocument::Unloading | 3 | The status after close() has been called on an open document. At this point the document is still valid and all its data can be accessed. |
QPdfDocument::Error | 4 | The status after Loading, if loading has failed. |
See also QPdfDocument::status().
Member Function Documentation
QPdfDocument::QPdfDocument(QObject *parent = nullptr)
Constructs a new document with parent object parent.
[virtual] QPdfDocument::~QPdfDocument()
Destroys the document.
void QPdfDocument::close()
Closes the document.
QPdfSelection QPdfDocument::getAllText(int page)
Returns all the text and its bounds on the given page.
Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.
QPdfSelection QPdfDocument::getSelection(int page, QPointF start, QPointF end)
Returns information about the text on the given page that can be found between the given start and end points, if any.
Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.
QPdfSelection QPdfDocument::getSelectionAtIndex(int page, int startIndex, int maxLength)
Returns information about the text on the given page that can be found beginning at the given startIndex with at most maxLength characters.
Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.
QVariant QPdfDocument::metaData(QPdfDocument::MetaDataField field) const
Returns the meta data of the document for the given field.
int QPdfDocument::pageCount() const
Returns the amount of pages for the loaded document or 0 if no document is loaded.
Note: Getter function for property pageCount.
QImage QPdfDocument::render(int page, QSize imageSize, QPdfDocumentRenderOptions renderOptions = QPdfDocumentRenderOptions())
Renders the page into a QImage of size imageSize according to the provided renderOptions.
Returns the rendered page or an empty image in case of an error.
Note: If the imageSize does not match the aspect ratio of the page in the PDF document, the page is rendered scaled, so that it covers the complete imageSize.
QPdfDocument::Status QPdfDocument::status() const
Returns the current status of the document.
Note: Getter function for property status.
© 2024 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.
