write info to pdf

buff_write_test.go

@@ -2,7 +2,6 @@ package gopdf
 
 import (
 	"bytes"
-	"fmt"
 	"testing"
 )
 
@@ -34,13 +33,14 @@ func TestFloat(t *testing.T){
 
 func TestEncodeUTF8(t *testing.T) {
 	str := "Boonchai Manasirisuk"
-	var buff bytes.Buffer
-	for _, r := range str {
-		c := fmt.Sprintf("%X", r)
-		for len(c) < 4 {
-			c = "0" + c
-		}
-		buff.WriteString(c)
+	buff := encodeUtf8(str)
+	if buff != "0042006F006F006E00630068006100690020004D0061006E0061007300690072006900730075006B" {
+		t.Error("not match")
 	}
-	fmt.Printf("%s\n", buff.String())
 }
+
+/*
+func TestInfoDate(t *testing.T) {
+	str := infodate(time.Now())
+	fmt.Printf("%s\n", str)
+}*/

gopdf.go

@@ -701,7 +701,8 @@ func (gp *GoPdf) xref(linelens []int, buff *bytes.Buffer, i *int) error {
 	if gp.isUseInfo {
 		buff.WriteString(fmt.Sprintf("/Info <</Author <FEFF%s>\n", encodeUtf8(gp.info.Author)))
 		buff.WriteString(fmt.Sprintf("/Creator <FEFF%s>\n", encodeUtf8(gp.info.Creator)))
-		buff.WriteString(fmt.Sprintf("/Producer <FEFF%s>>>\n", encodeUtf8(gp.info.Creator)))
+		buff.WriteString(fmt.Sprintf("/Producer <FEFF%s>\n", encodeUtf8(gp.info.Creator)))
+		buff.WriteString(fmt.Sprintf("/CreationDate(D:%s)>>\n", infodate(gp.info.CreationDate)))
 	}
 	buff.WriteString(">>\n")
 	buff.WriteString("startxref\n")
@@ -753,3 +754,8 @@ func encodeUtf8(str string) string {
 	}
 	return buff.String()
 }
+
+func infodate(t time.Time) string {
+	ft := t.Format("20060102150405-07'00'")
+	return ft
+}