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A PDF document generator with high level support for text, drawing and images
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contrib Fix comments according to best practices by effective go (#217) Dec 11, 2018
font Add a sample Type1 font and metric file pair for testing purposes Jul 23, 2015
image Add beginning of test to study issue 193 Sep 19, 2018
internal Fix comments according to best practices by effective go (#217) Dec 11, 2018
list Include links to reference PDFs in README Oct 13, 2015
makefont Clarify restrictions on OpenType fonts, namely that they must be deri… Aug 22, 2015
pdf Add example usage for SetWordSpacing Feb 21, 2019
text Initial commit into mercurial Aug 2, 2013
.gitattribute Saving files before refreshing line endings Oct 12, 2015
.gitignore added functionality to change the current page in the pdf document Feb 27, 2019
LICENSE Acknowledge word spacing author Feb 21, 2019 Change reference to new license filename Nov 13, 2016
check Refer to example in SetPage() documentation. Feb 28, 2019
def.go Add PageCount() method Apr 9, 2019
doc.go Acknowledge word spacing author Feb 21, 2019
embedded.go Add cp1250 map to embeddedMapList Oct 29, 2015
font.go Fix comments according to best practices by effective go (#217) Dec 11, 2018
fpdf.go Anka2310's modified fix for the right justify bug Apr 17, 2019
fpdf_test.go Anka2310's modified fix for the right justify bug Apr 17, 2019
go.mod gofpdf: add support for Go modules (#185) Jul 24, 2018
label.go Add charting facility Mar 19, 2018
layer.go Convert sequential examples to ones that are bound to gofpdf methods. Jul 7, 2015
png.go fixed warnings gocritic 3.3 (#192) Sep 15, 2018
protect.go fixed warnings gocritic 3.3 (#192) Sep 15, 2018
spotcolor.go Add partial support for spot colors. This does not yet include gradie… Nov 12, 2017
subwrite.go Reference SubWrite example Dec 27, 2018
svgbasic.go SVG closepath support Feb 4, 2019
svgwrite.go SVG closepath support Feb 4, 2019
template.go Updated font id generation and image id (#222) Dec 23, 2018
template_impl.go Refactored Encode and Decode functions, Fixed Template ID Conflicts Dec 17, 2018
ttfparser.go Allow default compression mode to be set. Go 1.7 introduces a new com… Aug 18, 2016



MIT licensed GoDoc Build Status

Package gofpdf implements a PDF document generator with high level support for text, drawing and images.


  • Choice of measurement unit, page format and margins
  • Page header and footer management
  • Automatic page breaks, line breaks, and text justification
  • Inclusion of JPEG, PNG, GIF, TIFF and basic path-only SVG images
  • Colors, gradients and alpha channel transparency
  • Outline bookmarks
  • Internal and external links
  • TrueType, Type1 and encoding support
  • Page compression
  • Lines, Bézier curves, arcs, and ellipses
  • Rotation, scaling, skewing, translation, and mirroring
  • Clipping
  • Document protection
  • Layers
  • Templates
  • Barcodes
  • Charting facility

gofpdf has no dependencies other than the Go standard library. All tests pass on Linux, Mac and Windows platforms.

Like FPDF version 1.7, from which gofpdf is derived, this package does not yet support UTF-8 fonts. In particular, languages that require more than one code page such as Chinese, Japanese, and Arabic are not currently supported. This is explained in issue 109. However, support is provided to automatically translate UTF-8 runes to code page encodings for languages that have fewer than 256 glyphs.


To install the package on your system, run

go get

Later, to receive updates, run

go get -u -v

Quick Start

The following Go code generates a simple PDF file.

pdf := gofpdf.New("P", "mm", "A4", "")
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.


If 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 Output() is called. For the same reason, if an error occurs in the calling application during PDF generation, it may be desirable for the application to transfer the error to the Fpdf instance by calling the SetError() method or the SetErrorf() method. At any time during the life cycle of the Fpdf instance, the error state can be determined with a call to Ok() or Err(). The error itself can be retrieved with a call to Error().

Conversion Notes

This 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, pdf.GetX() is used rather than simply pdf.X()). The similarity of the two libraries makes the original FPDF website a good source of information. It includes a forum and FAQ.

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 PDFs

A side effect of running "go test ./..." is the production of a number of example PDFs. These can be found in the gofpdf/pdf directory after the tests complete.

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 exampleFilename() and summary().

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 ComparePDFFiles() in internal/example/example.go is true. (By default it is false.) The routine that summarizes an example will look for this file and, if found, will call ComparePDFFiles() to check the example PDF for equality with its reference PDF. If differences exist between the two files they will be printed to standard output and the test will fail. If the reference file is missing, the comparison is considered to succeed. In order to successfully compare two PDFs, the placement of internal resources must be consistent and the internal creation timestamps must be the same. To do this, the methods SetCatalogSort() and SetCreationDate() need to be called for both files. This is done automatically for all examples.

Nonstandard Fonts

Nothing special is required to use the standard PDF fonts (courier, helvetica, times, zapfdingbats) in your documents other than calling SetFont().

In order to use a different 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/ --dst=../font ../font/calligra.ttf

In your PDF generation code, call AddFont() to load the font and, as with the standard fonts, SetFont() to begin using it. Most examples, including the package example, demonstrate this method. Good sources of free, open-source fonts include Google Fonts and DejaVu Fonts.

Related Packages

The 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 Changes

gofpdf 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 contrib directory.

Here are guidelines for making submissions. Your change should

  • be compatible with the MIT License
  • be properly documented
  • be formatted with go fmt
  • include an example in fpdf_test.go if appropriate
  • conform to the standards of golint and go vet, that is, golint . and go vet . should not generate any warnings
  • not diminish test coverage

Pull requests work nicely as a means of contributing your changes.


gofpdf is released under the MIT License. It is copyrighted by Kurt Jung and the contributors acknowledged below.


This 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.


  • Handle UTF-8 source text natively. Until then, automatic translation of UTF-8 runes to code page bytes is provided.
  • Improve test coverage as reported by the coverage tool.
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