diff --git a/file_util.go b/file_util.go
index a560afa..d6e4553 100644
--- a/file_util.go
+++ b/file_util.go
@@ -66,3 +66,21 @@ func InsertLine(lines *[]string, pos int64, l string) {
 func WriteFile(path string, content []byte) error {
 	return ioutil.WriteFile(path, content, 0644) // drw-r--r--
 }
+
+func ListDir(path string) (fnames []string, err error) {
+	finfo, err := ioutil.ReadDir(path)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, f := range finfo {
+		fnames = append(fnames, f.Name())
+	}
+
+	return fnames, nil
+}
+
+func WorkingDir() string {
+	dir, _ := os.Getwd()
+	return dir
+}
diff --git a/pdfhelper/pdf.go b/pdfhelper/pdf.go
index 66bd4ac..a1ccacb 100644
--- a/pdfhelper/pdf.go
+++ b/pdfhelper/pdf.go
@@ -102,6 +102,12 @@ type FormatedCell struct {
 	Alignment       string
 }
 
+func (pdf *Helper) FCell(x, y float64, c FormatedCell) {
+	pdf.SetXY(x, y)
+	pdf.SetFont(c.Font, c.FontStyle, c.FontSize)
+	pdf.CellFormat(c.W, c.H, pdf.ToUTF8(c.Text), c.Border, BELLOW, c.Alignment, false, 0, "")
+}
+
 func (pdf *Helper) Column(x, y float64, cells []FormatedCell) {
 	pdf.SetXY(x, y)
 	for _, c := range cells {
@@ -184,12 +190,11 @@ type PDFCellAligned struct {
 }
 
 func (pdf *Helper) TextLength(txt, family, style string, size float64) float64 {
-	family, _, _, _ = pdf.setCorrectFontFamily(txt)
+	family, _, _, _ = pdf.setCorrectFontFamily(textEncoding(txt))
 	return pdf.Fpdf.TextLength(txt, family, style, size)
 }
 
-// ToUTF8 ...
-func (pdf *Helper) ToUTF8(s string) string {
+func textEncoding(s string) string {
 	encoding := latinEncoding
 	runes := []rune(s)
 	for _, r := range runes {
@@ -198,6 +203,12 @@ func (pdf *Helper) ToUTF8(s string) string {
 			break
 		}
 	}
+	return encoding
+}
+
+// ToUTF8 ...
+func (pdf *Helper) ToUTF8(s string) string {
+	encoding := textEncoding(s)
 	pdf.setCorrectFontFamily(encoding)
 	translator, ok := pdf.translators[encoding]
 	if !ok {
@@ -209,12 +220,12 @@ func (pdf *Helper) ToUTF8(s string) string {
 func (pdf *Helper) setCorrectFontFamily(enc string) (family, style string, ptSize, unitSize float64) {
 	family, style, ptSize, unitSize = pdf.GetFontInfo()
 	if enc == cyrillicEncoding {
-		if !strings.HasSuffix(family, "Cyrillic") {
-			family += "Cyrillic"
+		if !strings.HasSuffix(family, "cyrillic") {
+			family += "cyrillic"
 		}
 	} else {
-		if strings.HasSuffix(family, "Cyrillic") {
-			family = strings.TrimSuffix(family, "Cyrillic")
+		if strings.HasSuffix(family, "cyrillic") {
+			family = strings.TrimSuffix(family, "cyrillic")
 		}
 	}
 	pdf.SetFont(family, style, ptSize)
@@ -254,14 +265,12 @@ func (pdf *Helper) InsertPageNumber(x, y float64, format string) {
 	pdf.Column(x, y, []FormatedCell{{10, 1, num, "DejaVuSans", "", 8, NOBORDER, LEFT}})
 }
 
-func (pdf *Helper) WriteSuperscript(
-	txt, script string,
-	x, y float64,
-	fontFamily, fontStyle string,
-	fontSize float64) {
+func (pdf *Helper) SuperscriptText(x, y, cw, ch float64, text, script string) {
+	family, style, size, sizeU := pdf.setCorrectFontFamily(textEncoding(text))
+
+	pdf.FCell(x, y, FormatedCell{cw, ch, text, family, style, size, NOBORDER, LEFT})
 
-	scriptOffsetX := x + pdf.TextLength(txt, fontFamily, fontStyle, fontSize)
-	scriptOffsetY := y - fontSize*0.3
-	pdf.Column(x, y, []FormatedCell{{5.0, 5.0, txt, fontFamily, fontStyle, 6, NOBORDER, LEFT}})
-	pdf.Column(scripttxtOffset, scriptOffsetY, []FormatedCell{{5.0, 5.0, script, fontFamily, fontStyle, 6, NOBORDER, LEFT}})
+	sx := x + pdf.TextLength(text, family, style, size)
+	sy := y - sizeU*0.2
+	pdf.FCell(sx, sy, FormatedCell{cw, ch, script, family, style, size - 2, NOBORDER, LEFT})
 }