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@@ -10,8 +10,6 @@ containing text and geometrical shapes.
This project aims to port [PDFBox](https://github.com/apache/pdfbox) to C#. This project aims to port [PDFBox](https://github.com/apache/pdfbox) to C#.
**Migrating to 0.1.6 from 0.1.x?** Use this guide: [migration to 0.1.6](https://github.com/UglyToad/PdfPig/wiki/Migration-to-0.1.6).
## Wiki ## Wiki
Check out our [wiki](https://github.com/UglyToad/PdfPig/wiki) for more examples and detailed guides on the API. Check out our [wiki](https://github.com/UglyToad/PdfPig/wiki) for more examples and detailed guides on the API.
@@ -55,7 +53,7 @@ An example of the output of this is shown below:
Where for the PDF text ("Write something in") shown at the top the 3 words (in pink) are detected and each word contains the individual letters with glyph bounding boxes. Where for the PDF text ("Write something in") shown at the top the 3 words (in pink) are detected and each word contains the individual letters with glyph bounding boxes.
### Ceate PDF Document ### Create PDF Document
To create documents use the class `PdfDocumentBuilder`. The Standard 14 fonts provide a quick way to get started: To create documents use the class `PdfDocumentBuilder`. The Standard 14 fonts provide a quick way to get started:
```cs ```cs
@@ -77,10 +75,10 @@ The output is a 1 page PDF document with the text "Hello World!" in Helvetica ne
![Image shows a PDF document in Google Chrome's PDF viewer. The text "Hello World!" is visible](https://raw.githubusercontent.com/UglyToad/Pdf/master/documentation/builder-output.png) ![Image shows a PDF document in Google Chrome's PDF viewer. The text "Hello World!" is visible](https://raw.githubusercontent.com/UglyToad/Pdf/master/documentation/builder-output.png)
Each font must be registered with the PdfDocumentBuilder prior to use enable pages to share the font resources. Only Standard 14 fonts and TrueType fonts (.ttf) are supported. Each font must be registered with the `PdfDocumentBuilder` prior to use enable pages to share the font resources. Only Standard 14 fonts and TrueType fonts (.ttf) are supported.
### Advanced Document Extraction ### Advanced Document Extraction
In this example a more advanced document extraction is performed. PdfDocumentBuilder is used to create a copy of the pdf with debug information (bounding boxes and reading order) added. In this example a more advanced document extraction is performed. `PdfDocumentBuilder` is used to create a copy of the pdf with debug information (bounding boxes and reading order) added.
```cs ```cs
@@ -183,7 +181,7 @@ The document contains the version of the PDF specification it complies with, acc
decimal version = document.Version; decimal version = document.Version;
### Document Creation (0.0.5) ### Document Creation
The `PdfDocumentBuilder` creates a new document with no pages or content. The `PdfDocumentBuilder` creates a new document with no pages or content.
@@ -256,7 +254,7 @@ string title = document.Information.Title;
// etc... // etc...
``` ```
### Document Structure (0.0.3) ### Document Structure
The document now has a Structure member: The document now has a Structure member:
@@ -286,21 +284,21 @@ bool isA4 = size == PageSize.A4;
string text = page.Text; string text = page.Text;
There is a new (0.0.3) method which provides access to the words. This uses basic heuristics and is not reliable or well-tested: There is a method which provides access to the words. The default method uses basic heuristics. For advanced cases, You can also implement your own `IWordExtractor` or use the `NearestNeighbourWordExtractor`:
IEnumerable<Word> words = page.GetWords(); IEnumerable<Word> words = page.GetWords();
You can also (0.0.6) access the raw operations used in the page's content stream for drawing graphics and content on the page: You can also access the raw operations used in the page's content stream for drawing graphics and content on the page:
IReadOnlyList<IGraphicsStateOperation> operations = page.Operations; IReadOnlyList<IGraphicsStateOperation> operations = page.Operations;
Consult the PDF specification for the meaning of individual operators. Consult the PDF specification for the meaning of individual operators.
There is also an early access (0.0.3) API for retrieving the raw bytes of PDF image objects per page: There is also an API for retrieving the PDF image objects per page:
IEnumerable<XObjectImage> images = page.ExperimentalAccess.GetRawImages(); IEnumerable<XObjectImage> images = page.GetImages();
This API will be changed in future releases. Please read the [wiki on Images](https://github.com/UglyToad/PdfPig/wiki/Images).
### Letter ### Letter
@@ -322,15 +320,15 @@ These letters contain:
Letter position is measured in PDF coordinates where the origin is the lower left corner of the page. Therefore a higher Y value means closer to the top of the page. Letter position is measured in PDF coordinates where the origin is the lower left corner of the page. Therefore a higher Y value means closer to the top of the page.
### Annotations (0.0.5) ### Annotations
Early support for retrieving annotations on each page is provided using the method: Retrieving annotations on each page is provided using the method:
page.ExperimentalAccess.GetAnnotations() page.GetAnnotations()
This call is not cached and the document must not have been disposed prior to use. The annotations API may change in future. This call is not cached and the document must not have been disposed prior to use.
### Bookmarks (0.0.10) ### Bookmarks
The bookmarks (outlines) of a document may be retrieved at the document level: The bookmarks (outlines) of a document may be retrieved at the document level:
@@ -338,7 +336,7 @@ The bookmarks (outlines) of a document may be retrieved at the document level:
This will return `false` if the document does not define any bookmarks. This will return `false` if the document does not define any bookmarks.
### Forms (0.0.10) ### Forms
Form fields for interactive forms (AcroForms) can be retrieved using: Form fields for interactive forms (AcroForms) can be retrieved using:
@@ -350,15 +348,15 @@ The fields can be accessed using the `AcroForm`'s `Fields` property. Since the f
Please note the forms are readonly and values cannot be changed or added using PdfPig. Please note the forms are readonly and values cannot be changed or added using PdfPig.
### Hyperlinks (0.1.0) ### Hyperlinks
A page has a method to extract hyperlinks (annotations of link type): A page has a method to extract hyperlinks (annotations of link type):
IReadOnlyList<UglyToad.PdfPig.Content.Hyperlink> hyperlinks = page.GetHyperlinks(); IReadOnlyList<UglyToad.PdfPig.Content.Hyperlink> hyperlinks = page.GetHyperlinks();
### TrueType (0.1.0) ### TrueType
The classes used to work with TrueType fonts in the PDF file are now available for public consumption. Given an input file: The classes used to work with TrueType fonts in the PDF file are available for public consumption. Given an input file:
```cs ```cs
@@ -372,7 +370,7 @@ TrueTypeFont font = TrueTypeFontParser.Parse(input);
The parsed font can then be inspected. The parsed font can then be inspected.
### Embedded Files (0.1.0) ### Embedded Files
PDF files may contain other files entirely embedded inside them for document annotations. The list of embedded files and their byte content may be accessed: PDF files may contain other files entirely embedded inside them for document annotations. The list of embedded files and their byte content may be accessed:
@@ -386,7 +384,7 @@ if (document.Advanced.TryGetEmbeddedFiles(out IReadOnlyList<EmbeddedFile> files)
} }
``` ```
### Merging (0.1.2) ### Merging
You can merge 2 or more existing PDF files using the `PdfMerger` class: You can merge 2 or more existing PDF files using the `PdfMerger` class: