Support for unstyled, path-only SVG images of the type generated by the jSignature web control.

5 files changed, 393 insertions, 38 deletions

diff --git a/doc.go b/doc.go
index ff372f8..1dad3f2 100644
--- a/doc.go
+++ b/doc.go
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013 Kurt Jung (Gmail: kurt.w.jung)
+ * Copyright (c) 2013-2014 Kurt Jung (Gmail: kurt.w.jung)
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -15,21 +15,8 @@
  */
 
 /*
-Package gofpdf implements a PDF document generator.
-
-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. 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. Support for transformations is
-adapted from the FPDF transformation script by Moritz Wagner and Andreas
-Würmser. Lawrence Kesteloot provided code to allow an image's extent to be
-determined prior to placement. Bruno Michel has provided valuable assistance
-with the code.
-
-The FPDF website is http://www.fpdf.org/.
+Package gofpdf implements a PDF document generator with high level support for
+text, drawing and images.
 
 Features
 
@@ -57,10 +44,31 @@ Features
 
 • Clipping
 
+• Basic path-only SVG images
+
 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 source text. gofpdf is
-copyrighted by Kurt Jung and is released under the MIT License.
+is derived, this package does not yet support UTF-8 source text.
+
+Acknowledgments
+
+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. 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. Support for transformations is
+adapted from the FPDF transformation script by Moritz Wagner and Andreas
+Würmser. Lawrence Kesteloot provided code to allow an image's extent to be
+determined prior to placement. Bruno Michel has provided valuable assistance
+with the code.
+
+The FPDF website is http://www.fpdf.org/.
+
+License
+
+gofpdf is copyrighted by Kurt Jung and is released under the MIT License.
 
 Installation
 
diff --git a/fpdf.go b/fpdf.go
index 30cf006..c2625d0 100644
--- a/fpdf.go
+++ b/fpdf.go
@@ -826,7 +826,7 @@ func (f *Fpdf) Curve(x0, y0, cx, cy, x1, y1 float64, styleStr string) {
 // the current draw color, line width, and cap style centered on the curve's
 // path. Filling uses the current fill color.
 //
-// See tutorial 11 for an example of this function.
+// See tutorials 11 and 20 for examples of this function.
 func (f *Fpdf) CurveCubic(x0, y0, cx0, cy0, x1, y1, cx1, cy1 float64, styleStr string) {
 	f.point(x0, y0)
 	f.outf("%.5f %.5f %.5f %.5f %.5f %.5f c %s", cx0*f.k, (f.h-cy0)*f.k,
diff --git a/fpdf_test.go b/fpdf_test.go
index d70875a..c8bf2e3 100644
--- a/fpdf_test.go
+++ b/fpdf_test.go
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013 Kurt Jung (Gmail: kurt.w.jung)
+ * Copyright (c) 2013-2014 Kurt Jung (Gmail: kurt.w.jung)
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -88,6 +88,18 @@ func docWriter(pdf *gofpdf.Fpdf, idx int) *pdfWriter {
 	return pw
 }
 
+func imageFile(fileStr string) string {
+	return filepath.Join(cnImgDir, fileStr)
+}
+
+func fontFile(fileStr string) string {
+	return filepath.Join(cnFontDir, fileStr)
+}
+
+func textFile(fileStr string) string {
+	return filepath.Join(cnTextDir, fileStr)
+}
+
 // Convert 'ABCDEFG' to, for example, 'A,BCD,EFG'
 func strDelimit(str string, sepstr string, sepcount int) string {
 	pos := len(str) - sepcount
@@ -187,7 +199,7 @@ func ExampleFpdf_tutorial01() {
 func ExampleFpdf_tutorial02() {
 	pdf := gofpdf.New("P", "mm", "A4", cnFontDir)
 	pdf.SetHeaderFunc(func() {
-		pdf.Image(cnImgDir+"/logo.png", 10, 6, 30, 0, false, "", 0, "")
+		pdf.Image(imageFile("logo.png"), 10, 6, 30, 0, false, "", 0, "")
 		pdf.SetY(5)
 		pdf.SetFont("Arial", "B", 15)
 		pdf.Cell(80, 0, "")
@@ -274,8 +286,8 @@ func ExampleFpdf_tutorial03() {
 		chapterTitle(chapNum, titleStr)
 		chapterBody(fileStr)
 	}
-	printChapter(1, "A RUNAWAY REEF", cnTextDir+"/20k_c1.txt")
-	printChapter(2, "THE PROS AND CONS", cnTextDir+"/20k_c2.txt")
+	printChapter(1, "A RUNAWAY REEF", textFile("20k_c1.txt"))
+	printChapter(2, "THE PROS AND CONS", textFile("20k_c2.txt"))
 	pdf.OutputAndClose(docWriter(pdf, 3))
 	// Output:
 	// Successfully generated pdf/tutorial03.pdf
@@ -374,8 +386,8 @@ func ExampleFpdf_tutorial04() {
 		// Page number
 		pdf.CellFormat(0, 10, fmt.Sprintf("Page %d", pdf.PageNo()), "", 0, "C", false, 0, "")
 	})
-	printChapter(1, "A RUNAWAY REEF", cnTextDir+"/20k_c1.txt")
-	printChapter(2, "THE PROS AND CONS", cnTextDir+"/20k_c2.txt")
+	printChapter(1, "A RUNAWAY REEF", textFile("20k_c1.txt"))
+	printChapter(2, "THE PROS AND CONS", textFile("20k_c2.txt"))
 	pdf.OutputAndClose(docWriter(pdf, 4))
 	// Output:
 	// Successfully generated pdf/tutorial04.pdf
@@ -488,7 +500,7 @@ func ExampleFpdf_tutorial05() {
 		}
 		pdf.CellFormat(wSum, 0, "", "T", 0, "", false, 0, "")
 	}
-	loadData(cnTextDir + "/countries.txt")
+	loadData(textFile("countries.txt"))
 	pdf.SetFont("Arial", "", 14)
 	pdf.AddPage()
 	basicTable()
@@ -583,7 +595,7 @@ func ExampleFpdf_tutorial06() {
 	// Second page
 	pdf.AddPage()
 	pdf.SetLink(link, 0, -1)
-	pdf.Image(cnImgDir+"/logo.png", 10, 12, 30, 0, false, "", 0, "http://www.fpdf.org")
+	pdf.Image(imageFile("logo.png"), 10, 12, 30, 0, false, "", 0, "http://www.fpdf.org")
 	pdf.SetLeftMargin(45)
 	pdf.SetFontSize(14)
 	htmlStr := `You can now easily print text mixing different styles: <b>bold</b>, ` +
@@ -613,15 +625,15 @@ func ExampleFpdf_tutorial08() {
 	pdf := gofpdf.New("P", "mm", "A4", cnFontDir)
 	pdf.AddPage()
 	pdf.SetFont("Arial", "", 11)
-	pdf.Image(cnImgDir+"/logo.png", 10, 10, 30, 0, false, "", 0, "")
+	pdf.Image(imageFile("logo.png"), 10, 10, 30, 0, false, "", 0, "")
 	pdf.Text(50, 20, "logo.png")
-	pdf.Image(cnImgDir+"/logo.gif", 10, 40, 30, 0, false, "", 0, "")
+	pdf.Image(imageFile("logo.gif"), 10, 40, 30, 0, false, "", 0, "")
 	pdf.Text(50, 50, "logo.gif")
-	pdf.Image(cnImgDir+"/logo-gray.png", 10, 70, 30, 0, false, "", 0, "")
+	pdf.Image(imageFile("logo-gray.png"), 10, 70, 30, 0, false, "", 0, "")
 	pdf.Text(50, 80, "logo-gray.png")
-	pdf.Image(cnImgDir+"/logo-rgb.png", 10, 100, 30, 0, false, "", 0, "")
+	pdf.Image(imageFile("logo-rgb.png"), 10, 100, 30, 0, false, "", 0, "")
 	pdf.Text(50, 110, "logo-rgb.png")
-	pdf.Image(cnImgDir+"/logo.jpg", 10, 130, 30, 0, false, "", 0, "")
+	pdf.Image(imageFile("logo.jpg"), 10, 130, 30, 0, false, "", 0, "")
 	pdf.Text(50, 140, "logo.jpg")
 	pdf.OutputAndClose(docWriter(pdf, 8))
 	// Output:
@@ -673,9 +685,9 @@ func ExampleFpdf_tutorial09() {
 	pdf.SetFont("Times", "", 12)
 	for j := 0; j < 20; j++ {
 		if j == 1 {
-			pdf.Image(cnImgDir+"/fpdf.png", -1, 0, colWd, 0, true, "", 0, "")
+			pdf.Image(imageFile("fpdf.png"), -1, 0, colWd, 0, true, "", 0, "")
 		} else if j == 5 {
-			pdf.Image(cnImgDir+"/golang-gopher.png", -1, 0, colWd, 0, true, "", 0, "")
+			pdf.Image(imageFile("golang-gopher.png"), -1, 0, colWd, 0, true, "", 0, "")
 		}
 		pdf.MultiCell(colWd, 5, loremStr, "", "", false)
 		pdf.Ln(-1)
@@ -687,7 +699,7 @@ func ExampleFpdf_tutorial09() {
 
 // Test the corner cases as reported by the gocov tool
 func ExampleFpdf_tutorial10() {
-	gofpdf.MakeFont(cnFontDir+"/calligra.ttf", cnFontDir+"/cp1252.map", cnFontDir, nil, true)
+	gofpdf.MakeFont(fontFile("calligra.ttf"), fontFile("cp1252.map"), cnFontDir, nil, true)
 	pdf := gofpdf.New("", "", "", "")
 	pdf.SetFontLocation(cnFontDir)
 	pdf.SetTitle("世界", true)
@@ -822,7 +834,7 @@ func ExampleFpdf_tutorial12() {
 			pdf.SetXY(x, y+2)
 			pdf.CellFormat(rectW, rectH, "A", "", 0, "C", false, 0, "")
 			pdf.SetAlpha(0.5, modeList[j])
-			pdf.Image(cnImgDir+"/golang-gopher.png", x-gapX, y, rectW+2*gapX, 0, false, "", 0, "")
+			pdf.Image(imageFile("golang-gopher.png"), x-gapX, y, rectW+2*gapX, 0, false, "", 0, "")
 			pdf.SetAlpha(1.0, "Normal")
 			x += rectW + gapX
 			j++
@@ -887,7 +899,7 @@ func ExampleFpdf_tutorial14() {
 
 	y += 28
 	pdf.ClipEllipse(26, y+10, 16, 10, true)
-	pdf.Image(cnImgDir+"/logo.jpg", 10, y, 32, 0, false, "JPG", 0, "")
+	pdf.Image(imageFile("logo.jpg"), 10, y, 32, 0, false, "JPG", 0, "")
 	pdf.ClipEnd()
 
 	pdf.ClipCircle(60, y+10, 10, true)
@@ -1105,7 +1117,7 @@ func ExampleFpdf_tutorial18() {
 	pdf.SetMargins(10, 10, 10)
 	pdf.SetFont("Helvetica", "", 15)
 	for j, str := range fileList {
-		fileStr = filepath.Join(cnImgDir, str)
+		fileStr = imageFile(str)
 		infoPtr = pdf.RegisterImage(fileStr, "")
 		imgWd, imgHt = infoPtr.Extent()
 		switch j {
@@ -1158,3 +1170,85 @@ func ExampleFpdf_tutorial19() {
 	// Output:
 	// Successfully generated pdf/tutorial19.pdf
 }
+
+// This example demonstrates how to render a simple path-only SVG image of the
+// type generated by the jSignature web control.
+func ExampleFpdf_tutorial20() {
+	const (
+		fontPtSize = 18.0
+		lineHt     = fontPtSize * 25.4 / 72.0
+		wd         = 100.0
+		sigFileStr = "signature.svg"
+	)
+	var (
+		sig gofpdf.SvgBasicType
+		err error
+	)
+	pdf := gofpdf.New("P", "mm", "A4", cnFontDir) // A4 210.0 x 297.0
+	link := func(showStr, urlStr string) {
+		pdf.SetFont("", "U", 0)
+		pdf.SetTextColor(0, 0, 128)
+		pdf.WriteLinkString(lineHt, showStr, urlStr)
+		pdf.SetTextColor(0, 0, 0)
+		pdf.SetFont("", "", 0)
+	}
+	pdf.SetFont("Times", "", fontPtSize)
+	pdf.AddPage()
+	pdf.SetMargins(10, 10, 10)
+	pdf.Write(lineHt, "This example renders a simple ")
+	link("SVG", "http://www.w3.org/TR/SVG/")
+	pdf.Write(lineHt, " (scalable vector graphics) image that contains only "+
+		"basic path commands without any styling, color fill, reflection or "+
+		"endpoint closures. In particular, the type of vector graphic returned from a ")
+	link("jSignature", "http://willowsystems.github.io/jSignature/#/demo/")
+	pdf.Write(lineHt, " web control is supported and is used in this example.")
+	pdf.Ln(3 * lineHt)
+	sig, err = gofpdf.SvgBasicFileParse(imageFile(sigFileStr))
+	if err == nil {
+		scale := 150 / sig.Wd
+		scaleY := 50 / sig.Ht
+		if scale > scaleY {
+			scale = scaleY
+		}
+		originX := (210.0 - scale*sig.Wd) / 2.0
+		originY := pdf.GetY() + 10
+		var x, y, newX, newY float64
+		var cx0, cy0, cx1, cy1 float64
+		var path []gofpdf.SvgBasicSegmentType
+		var seg gofpdf.SvgBasicSegmentType
+		val := func(arg int) (float64, float64) {
+			return originX + scale*seg.Arg[arg], originY + scale*seg.Arg[arg+1]
+		}
+		pdf.SetLineCapStyle("round")
+		pdf.SetLineWidth(0.25)
+		pdf.SetDrawColor(0, 0, 128)
+		for j := 0; j < len(sig.Segments) && pdf.Ok(); j++ {
+			path = sig.Segments[j]
+			for k := 0; k < len(path) && pdf.Ok(); k++ {
+				seg = path[k]
+				switch seg.Cmd {
+				case 'M':
+					x, y = val(0)
+					pdf.SetXY(x, y)
+				case 'L':
+					newX, newY = val(0)
+					pdf.Line(x, y, newX, newY)
+					x, y = newX, newY
+				case 'C':
+					cx0, cy0 = val(0)
+					cx1, cy1 = val(2)
+					newX, newY = val(4)
+					pdf.CurveCubic(x, y, cx0, cy0, newX, newY, cx1, cy1, "D")
+					x, y = newX, newY
+				default:
+					pdf.SetErrorf("Unexpected path command '%c'", seg.Cmd)
+				}
+			}
+		}
+	} else {
+		pdf.SetError(err)
+	}
+	pdf.OutputAndClose(docWriter(pdf, 20))
+	// Output:
+	// Successfully generated pdf/tutorial20.pdf
+}
diff --git a/image/signature.svg b/image/signature.svg
new file mode 100644
index 0000000..cdbb4af
--- /dev/null
+++ b/image/signature.svg
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns="http://www.w3.org/2000/svg" width="4010" height="570">
+  <path
+     d="m 243.83517,126.31141 c 50.21866,26.50627 126.75595,-3.87395 151.46369,-35.94162 24.70774,-32.067668 10.41159,-51.980992 -16.41089,-58.072772 -26.82248,-6.09178 -42.17661,10.494756 -57.68933,33.13636 -15.51272,22.641602 -22.3395,49.640452 -26.04984,89.319922 -3.71034,39.67947 -2.57151,103.67609 -16.65175,144.69433 -14.08024,41.01824 -40.79012,59.98014 -80.0876,71.50199 -39.29748,11.52185 -96.60749,6.67866 -126.372403,-24.20296 -29.764916,-30.88162 -24.693439,-84.55794 0.62001,-107.05538 25.313453,-22.49744 49.916583,-21.8463 53.386943,18.74456 3.47036,40.59086 -77.347631,106.99944 -102.157291,102.59574 -24.80966,-4.4037 -9.193082,0 -13.789623,0" />
+  <path
+     d="m 544.84659,276.92526 c 16.02735,-13.54645 29.98118,-31.39768 32.51139,-52.84016 1.4974,-10.24434 -1.94415,-22.06454 -11.64632,-27.13714 -22.66026,-14.31032 -51.37591,-9.68663 -75.27088,-1.12303 -29.57925,11.19994 -56.66841,28.48168 -80.87983,48.69857 -15.56749,13.48245 -30.31327,28.65126 -40.17476,46.87113 -10.56334,25.04076 5.93271,58.80187 33.76392,62.35287 20.97698,3.69753 41.31134,-5.15667 59.15595,-15.26739 23.68053,-12.07041 45.37059,-27.68722 65.11773,-45.42392 5.85816,-4.99109 11.66007,-10.04795 17.4228,-15.14884" />
+  <path
+     d="m 614.57518,235.67736 c -39.71057,22.89155 -90.21146,57.33437 -110.62013,81.46882 -20.40867,24.13445 1.74636,32.16167 21.51346,33.96557 19.7671,1.8039 40.22731,-5.81242 63.90833,-18.83825 23.68102,-13.02583 54.88215,-39.05314 73.09016,-60.24005 18.20801,-21.18691 37.84165,-41.69088 43.78312,-57.46575 5.94147,-15.77487 6.81292,-20.38898 -2.3045,-26.03079" />
+  <path
+     d="m 586.09449,351.56431 c 59.46452,-49.53559 110.50457,-110.94455 181.15663,-145.53797 21.55772,-14.53068 69.21456,-30.38164 74.52476,8.12435 2.15457,32.87115 -24.99905,56.36851 -41.3729,81.85669 -11.33394,14.91071 -34.85688,47.22341 -38.29416,51.12061 38.40925,-59.07476 94.0006,-105.23813 152.94098,-142.74425 21.53324,-14.17578 76.3474,-17.732 63.14039,22.44093 -6.44013,30.30909 -29.58192,52.20309 -51.31162,72.13403 -22.35245,20.18703 -11.93986,55.81184 21.21245,48.89199 28.04358,-1.72994 49.86098,-21.80465 73.62848,-34.51546 51.0484,-39.90132 89.3284,-97.12351 150.3008,-123.60116 30.7216,-12.02494 70.5868,-23.14241 98.2954,1.38478 22.9075,21.32517 9.8573,56.2678 -7.0675,76.93906 -18.1931,26.99594 -44.6741,46.96256 -74.8471,58.94304 -34.0583,20.33195 -79.3725,18.48794 -110.8061,-6.03301 -1.0838,-0.69666 -2.2533,-1.23366 -3.4004,-1.81269" />
+  <path
+     d="m 1154.6667,159.26245 c -19.2615,48.72397 -39.2763,98.0821 -71.8076,139.71403 -28.4578,44.00142 -46.4445,94.33551 -79.7245,135.30113 -23.78316,32.93768 -48.80204,65.54924 -80.01549,91.86673 -19.47895,6.1922 -20.04137,-20.7923 -14.66105,-32.91267 12.83153,-36.25521 37.22095,-66.57625 54.90924,-100.3885 22.07476,-38.69659 54.0525,-69.56182 85.7438,-100.24739" />
+  <path
+     d="m 1076.8889,323.15134 c 41.6055,37.74324 106.1656,40.87499 155.2476,16.47425 79.7307,-33.80513 147.627,-88.69981 215.7912,-140.91414 38.5692,-31.19936 75.8068,-66.58379 98.2999,-111.44269 5.2858,-16.340836 11.2358,-38.191353 -2.3042,-51.988823 -24.8579,-9.392422 -44.7459,19.21292 -62.7133,32.466761 -42.206,41.159272 -75.9104,90.348772 -105.7076,140.969902 -18.1332,33.9424 -36.3441,60.40033 -45.1009,105.84746 -4.8684,25.26636 17.3519,40.01019 38.489,36.24378 27.2382,-1.27906 52.1821,-14.06224 77.2642,-23.5167 20.2617,-9.77194 38.052,-23.75443 55.7341,-37.47313" />
+  <path
+     d="m 1518.5556,231.48467 c 45.3671,35.48031 84.7434,37.23796 135.7328,25.17331 14.925,-4.86754 25.7515,-17.97315 30.1445,-32.73996 6.2047,-12.9545 -0.2899,-27.91555 -12.929,-33.8982 -19.5006,-12.36806 -44.6888,-10.55607 -64.9092,-0.92535 -33.4028,14.45512 -59.4353,40.93033 -84.563,66.45243 -13.9248,16.55902 -22.671,38.06079 -22.9956,59.74639 0.7543,12.73146 10.7427,22.65661 22.5942,25.94215 28.6381,11.95988 61.6748,18.05546 91.8527,8.36881 20.1474,-7.27059 39.868,-15.91987 58.8894,-25.73255 22.7573,-13.36221 41.3454,-32.41648 60.072,-50.72036" />
+  <path
+     d="m 1789.3889,357.87356 c 28.6993,3.03127 63.3496,2.62457 82.7159,-22.45172 21.6447,-19.99229 43.1941,-48.10952 35.6329,-79.45221 -4.1368,-22.17497 -33.5802,-38.22486 -52.1616,-22.03003 -31.7488,22.47063 -31.372,70.25063 -12.8813,101.12391 23.6727,38.55114 74.0602,50.51158 116.164,41.35476 54.0203,-10.31179 104.4208,-53.87389 110.9357,-110.27278 0.7888,-32.83995 0.7757,-65.72269 4.9445,-98.36663 3.9298,-42.7466 9.9471,-89.084404 39.2166,-122.675001 17.104,-18.491716 51.2258,-26.923352 69.4545,-5.555968 14.6931,19.194858 3.0296,45.294939 -10.7419,61.486039 -16.3416,25.1385 -48.7197,29.13643 -75.3811,36.23743 -26.4792,5.77658 -58.6276,2.75073 -76.1034,-20.51069 -9.6512,-10.71312 -20.4603,-22.76827 -20.6837,-38.053992" />
+  <path
+     d="m 2254.6667,137.04023 c -3.9166,0.81691 -6.5582,5.39919 -5.219,9.18763 1.2777,3.63173 4.3682,6.64885 8.1357,7.58096 2.108,0.12035 4.1149,-1.67454 4.2375,-3.78089 0.7885,-3.73488 0.2701,-7.91813 -2.1144,-10.99661 -1.2461,-1.37634 -3.1464,-2.37225 -5.0398,-1.99109" />
+  <path
+     d="m 2228.9722,184.9569 c -29.9457,39.95653 -58.8628,80.7409 -86.118,122.56461 -5.4378,11.43956 -6.9218,27.24913 2.6137,36.94004 11.5344,8.50012 26.6093,3.95387 39.1614,0.62975 31.967,-8.46295 63.2786,-21.86206 88.264,-43.97857 15.2095,-12.48824 29.1196,-26.55137 41.4956,-41.85028" />
+  <path
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+  <path
+     d="m 2571.3333,191.2069 c -11.728,39.55572 -31.7885,76.05727 -54.1537,110.51619 -11.367,17.27415 -23.5479,34.0347 -36.8185,49.90047" />
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+     d="m 2481.0556,349.54023 c 39.4203,-54.93792 84.2673,-108.82208 144.2119,-142.13528 20.4555,-10.53089 43.6781,-13.18946 66.1233,-16.24748 15.4075,-2.13385 35.1588,8.90133 33.4692,26.24623 -2.9508,16.37726 -14.16,29.73489 -22.9962,43.3486 -13.3021,19.00229 -30.5436,36.66009 -36.611,59.58253 -4.3581,18.38699 14.1449,34.91044 31.9547,29.10574 16.8023,-4.83584 31.073,-15.60156 46.3125,-23.86514 23.356,-14.17855 45.5509,-30.69352 63.9244,-51.0352" />
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+  <path
+     d="m 3128.9722,178.01245 c 51.3284,2.8018 102.806,4.27265 154.1667,1.38889" />
+  <path
+     d="m 3368.5556,180.79023 c -26.0554,38.94967 -53.443,76.90675 -75.3826,118.80876 -8.2374,15.73252 -12.8945,40.55439 6.2938,47.64921 25.3545,6.43589 34.5616,-2.95338 49.294,-7.34667 48.0292,-19.31164 87.8533,-54.50776 122.854,-93.37814 15.42,-20.923 30.5124,-42.09003 46.9408,-62.26134" />
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+  <path
+     d="m 3772.7222,231.48467 c 33.1817,22.33062 74.828,35.62344 114.8149,27.5851 15.6821,-3.20582 30.2525,-10.71137 43.1524,-19.942 17.3248,-14.2012 16.9209,-44.79145 -2.1675,-57.28603 -13.4925,-8.89012 -30.6833,-5.87659 -45.6599,-3.46265 -33.5763,7.00049 -61.9142,28.29846 -85.8989,51.8761 -25.4017,22.73023 -42.112,57.70516 -36.9155,92.17467 6.3894,18.1743 25.3211,28.36102 43.6991,29.78005 26.397,2.30348 52.8197,-3.96515 77.6246,-12.547 39.816,-14.49663 75.2011,-38.73414 108.0175,-65.12268" />
+</svg>
diff --git a/svgbasic.go b/svgbasic.go
new file mode 100644
index 0000000..4c58f95
--- /dev/null
+++ b/svgbasic.go
@@ -0,0 +1,210 @@
+/*
+ * Copyright (c) 2014 Kurt Jung (Gmail: kurt.w.jung)
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+package gofpdf
+
+import (
+	"encoding/xml"
+	"fmt"
+	"io/ioutil"
+	"strconv"
+	"strings"
+)
+
+var pathCmdSub *strings.Replacer
+
+func init() {
+	// Handle permitted constructions like "100L200,230"
+	pathCmdSub = strings.NewReplacer(",", " ",
+		"L", " L ", "l", " l ",
+		"C", " C ", "c", " c ",
+		"M", " M ", "m", " m ")
+}
+
+// SvgBasicSegmentType describes a single curve or position segment
+type SvgBasicSegmentType struct {
+	Cmd byte // See http://www.w3.org/TR/SVG/paths.html for path command structure
+	Arg [6]float64
+}
+
+func absolutizePath(segs []SvgBasicSegmentType) {
+	var x, y float64
+	var segPtr *SvgBasicSegmentType
+	adjust := func(pos int, adjX, adjY float64) {
+		segPtr.Arg[pos] += adjX
+		segPtr.Arg[pos+1] += adjY
+	}
+	for j, seg := range segs {
+		segPtr = &segs[j]
+		if j == 0 && seg.Cmd == 'm' {
+			segPtr.Cmd = 'M'
+		}
+		switch segPtr.Cmd {
+		case 'M':
+			x = seg.Arg[0]
+			y = seg.Arg[1]
+		case 'm':
+			adjust(0, x, y)
+			segPtr.Cmd = 'M'
+			x = segPtr.Arg[0]
+			y = segPtr.Arg[1]
+		case 'L':
+			x = seg.Arg[0]
+			y = seg.Arg[1]
+		case 'l':
+			adjust(0, x, y)
+			segPtr.Cmd = 'L'
+			x = segPtr.Arg[0]
+			y = segPtr.Arg[1]
+		case 'C':
+			x = seg.Arg[4]
+			y = seg.Arg[5]
+		case 'c':
+			adjust(0, x, y)
+			adjust(2, x, y)
+			adjust(4, x, y)
+			segPtr.Cmd = 'C'
+			x = segPtr.Arg[4]
+			y = segPtr.Arg[5]
+		}
+	}
+}
+
+func pathParse(pathStr string) (segs []SvgBasicSegmentType, err error) {
+	var seg SvgBasicSegmentType
+	var j, argJ, argCount, prevArgCount int
+	setup := func(n int) {
+		// It is not strictly necessary to clear arguments, but result may be clearer
+		// to caller
+		for j := 0; j < len(seg.Arg); j++ {
+			seg.Arg[j] = 0.0
+		}
+		argJ = 0
+		argCount = n
+		prevArgCount = n
+	}
+	var str string
+	var c byte
+	pathStr = pathCmdSub.Replace(pathStr)
+	strList := strings.Fields(pathStr)
+	count := len(strList)
+	for j = 0; j < count && err == nil; j++ {
+		str = strList[j]
+		if argCount == 0 { // Look for path command or argument continuation
+			c = str[0]
+			if c == '-' || (c >= '0' && c <= '9') { // More arguments
+				if j > 0 {
+					setup(prevArgCount)
+					// Repeat previous action
+					if seg.Cmd == 'M' {
+						seg.Cmd = 'L'
+					} else if seg.Cmd == 'm' {
+						seg.Cmd = 'l'
+					}
+				} else {
+					err = fmt.Errorf("expecting SVG path command at first position, got %s", str)
+				}
+			}
+		}
+		if err == nil {
+			if argCount == 0 {
+				seg.Cmd = str[0]
+				switch seg.Cmd {
+				case 'M', 'm': // Absolute/relative moveto: x, y
+					setup(2)
+				case 'C', 'c': // Absolute/relative Bézier curve: cx0, cy0, cx1, cy1, x1, y1
+					setup(6)
+				case 'L', 'l': // Absolute/relative lineto: x, y
+					setup(2)
+				default:
+					err = fmt.Errorf("expecting SVG path command at position %d, got %s", j, str)
+				}
+			} else {
+				seg.Arg[argJ], err = strconv.ParseFloat(str, 64)
+				if err == nil {
+					argJ++
+					argCount--
+					if argCount == 0 {
+						segs = append(segs, seg)
+					}
+				}
+			}
+		}
+	}
+	if err == nil {
+		if argCount == 0 {
+			absolutizePath(segs)
+		} else {
+			err = fmt.Errorf("Expecting additional (%d) numeric arguments", argCount)
+		}
+	}
+	return
+}
+
+// SvgBasicType aggregates the information needed to describe a multi-segment
+// basic vector image
+type SvgBasicType struct {
+	Wd, Ht   float64
+	Segments [][]SvgBasicSegmentType
+}
+
+// SvgBasicParse parses a simple scalable vector graphics (SVG) buffer into a
+// descriptor. Only a small subset of the SVG standard, in particular the path
+// information generated by jSignature, is supported. The returned path data
+// includes only the commands 'M' (absolute moveto: x, y), 'L' (absolute
+// lineto: x, y), and 'C' (absolute cubic Bézier curve: cx0, cy0, cx1, cy1,
+// x1,y1).
+func SvgBasicParse(buf []byte) (sig SvgBasicType, err error) {
+	type pathType struct {
+		D string `xml:"d,attr"`
+	}
+	type srcType struct {
+		Wd    float64    `xml:"width,attr"`
+		Ht    float64    `xml:"height,attr"`
+		Paths []pathType `xml:"path"`
+	}
+	var src srcType
+	err = xml.Unmarshal(buf, &src)
+	if err == nil {
+		if src.Wd > 0 && src.Ht > 0 {
+			sig.Wd, sig.Ht = src.Wd, src.Ht
+			var segs []SvgBasicSegmentType
+			for _, path := range src.Paths {
+				if err == nil {
+					segs, err = pathParse(path.D)
+					if err == nil {
+						sig.Segments = append(sig.Segments, segs)
+					}
+				}
+			}
+		} else {
+			err = fmt.Errorf("Unacceptable values for basic SVG extent: %.2f x %.2f",
+				sig.Wd, sig.Ht)
+		}
+	}
+	return
+}
+
+// SvgBasicParse parses a simple scalable vector graphics (SVG) file into a
+// basic descriptor. See SvgBasicParse for additional comments.
+func SvgBasicFileParse(svgFileStr string) (sig SvgBasicType, err error) {
+	var buf []byte
+	buf, err = ioutil.ReadFile(svgFileStr)
+	if err == nil {
+		sig, err = SvgBasicParse(buf)
+	}
+	return
+}