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开源软件名称:jung-kurt/gofpdf开源软件地址:https://github.com/jung-kurt/gofpdf开源编程语言:Go 99.8%开源软件介绍:GoFPDF document generatorPackage gofpdf implements a PDF document generator with high level support for text, drawing and images. Features
gofpdf has no dependencies other than the Go standard library. All tests pass on Linux, Mac and Windows platforms. gofpdf supports UTF-8 TrueType fonts and “right-to-left” languages. Note that Chinese, Japanese, and Korean characters may not be included in many general purpose fonts. For these languages, a specialized font (for example, NotoSansSC for simplified Chinese) can be used. Also, support is provided to automatically translate UTF-8 runes to code page encodings for languages that have fewer than 256 glyphs. We Are ClosedThis repository will not be maintained, at least for some unknown duration. But it is hoped that gofpdf has a bright future in the open source world. Due to Go’s promise of compatibility, gofpdf should continue to function without modification for a longer time than would be the case with many other languages. Forks should be based on the last viable commit. Tools such as active-forks can be used to select a fork that looks promising for your needs. If a particular fork looks like it has taken the lead in attracting followers, this README will be updated to point people in that direction. The efforts of all contributors to this project have been deeply appreciated. Best wishes to all of you. InstallationTo install the package on your system, run go get github.com/jung-kurt/gofpdf Later, to receive updates, run go get -u -v github.com/jung-kurt/gofpdf/... Quick StartThe following Go code generates a simple PDF file. pdf := gofpdf.New("P", "mm", "A4", "")
pdf.AddPage()
pdf.SetFont("Arial", "B", 16)
pdf.Cell(40, 10, "Hello, world")
err := pdf.OutputFileAndClose("hello.pdf") See the functions in the fpdf_test.go file (shown as examples in this documentation) for more advanced PDF examples. ErrorsIf an error occurs in an Fpdf method, an internal error field is set.
After this occurs, Fpdf method calls typically return without performing
any operations and the error state is retained. This error management
scheme facilitates PDF generation since individual method calls do not
need to be examined for failure; it is generally sufficient to wait
until after Conversion NotesThis package is a relatively straightforward translation from the
original FPDF library written in PHP (despite
the caveat in the introduction to Effective
Go). The API names have been
retained even though the Go idiom would suggest otherwise (for example,
However, some internal changes have been made. Page content is built up using buffers (of type bytes.Buffer) rather than repeated string concatenation. Errors are handled as explained above rather than panicking. Output is generated through an interface of type io.Writer or io.WriteCloser. A number of the original PHP methods behave differently based on the type of the arguments that are passed to them; in these cases additional methods have been exported to provide similar functionality. Font definition files are produced in JSON rather than PHP. Example PDFsA side effect of running Please note that these examples run in the context of a test. In order
run an example as a standalone application, you’ll need to examine
fpdf_test.go
for some helper routines, for example Example PDFs can be compared with reference copies in order to verify
that they have been generated as expected. This comparison will be
performed if a PDF with the same name as the example PDF is placed in
the gofpdf/pdf/reference directory and if the third argument to
Nonstandard FontsNothing special is required to use the standard PDF fonts (courier,
helvetica, times, zapfdingbats) in your documents other than calling
You should use In order to use a different non-UTF-8 TrueType or Type1 font, you will need to generate a font definition file and, if the font will be embedded into PDFs, a compressed version of the font file. This is done by calling the MakeFont function or using the included makefont command line utility. To create the utility, cd into the makefont subdirectory and run “go build”. This will produce a standalone executable named makefont. Select the appropriate encoding file from the font subdirectory and run the command as in the following example. ./makefont --embed --enc=../font/cp1252.map --dst=../font ../font/calligra.ttf In your PDF generation code, call Related PackagesThe draw2d package is a two dimensional vector graphics library that can generate output in different forms. It uses gofpdf for its document production mode. Contributing Changesgofpdf is a global community effort and you are invited to make it even
better. If you have implemented a new feature or corrected a problem,
please consider contributing your change to the project. A contribution
that does not directly pertain to the core functionality of gofpdf
should be placed in its own directory directly beneath the Here are guidelines for making submissions. Your change should
Pull requests are the preferred means of accepting your changes. Licensegofpdf is released under the MIT License. It is copyrighted by Kurt Jung and the contributors acknowledged below. AcknowledgmentsThis package’s code and documentation are closely derived from the FPDF library created by Olivier Plathey, and a number of font and image resources are copied directly from it. Bruno Michel has provided valuable assistance with the code. Drawing support is adapted from the FPDF geometric figures script by David Hernández Sanz. Transparency support is adapted from the FPDF transparency script by Martin Hall-May. Support for gradients and clipping is adapted from FPDF scripts by Andreas Würmser. Support for outline bookmarks is adapted from Olivier Plathey by Manuel Cornes. Layer support is adapted from Olivier Plathey. Support for transformations is adapted from the FPDF transformation script by Moritz Wagner and Andreas Würmser. PDF protection is adapted from the work of Klemen Vodopivec for the FPDF product. Lawrence Kesteloot provided code to allow an image’s extent to be determined prior to placement. Support for vertical alignment within a cell was provided by Stefan Schroeder. Ivan Daniluk generalized the font and image loading code to use the Reader interface while maintaining backward compatibility. Anthony Starks provided code for the Polygon function. Robert Lillack provided the Beziergon function and corrected some naming issues with the internal curve function. Claudio Felber provided implementations for dashed line drawing and generalized font loading. Stani Michiels provided support for multi-segment path drawing with smooth line joins, line join styles, enhanced fill modes, and has helped greatly with package presentation and tests. Templating is adapted by Marcus Downing from the FPDF_Tpl library created by Jan Slabon and Setasign. Jelmer Snoeck contributed packages that generate a variety of barcodes and help with registering images on the web. Jelmer Snoek and Guillermo Pascual augmented the basic HTML functionality with aligned text. Kent Quirk implemented backwards-compatible support for reading DPI from images that support it, and for setting DPI manually and then having it properly taken into account when calculating image size. Paulo Coutinho provided support for static embedded fonts. Dan Meyers added support for embedded JavaScript. David Fish added a generic alias-replacement function to enable, among other things, table of contents functionality. Andy Bakun identified and corrected a problem in which the internal catalogs were not sorted stably. Paul Montag added encoding and decoding functionality for templates, including images that are embedded in templates; this allows templates to be stored independently of gofpdf. Paul also added support for page boxes used in printing PDF documents. Wojciech Matusiak added supported for word spacing. Artem Korotkiy added support of UTF-8 fonts. Dave Barnes added support for imported objects and templates. Brigham Thompson added support for rounded rectangles. Joe Westcott added underline functionality and optimized image storage. Benoit KUGLER contributed support for rectangles with corners of unequal radius, modification times, and for file attachments and annotations. Roadmap
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