单张图片转PDF（基于Go语言实现）

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package main   import (     "fmt"     "io/ioutil"     "log"     "path"       "github.com/jung-kurt/gofpdf" )   // Hello 测试 func Hello() {     pdf := gofpdf.New("P", "mm", "A4", "")     pdf.AddPage()     pdf.SetFont("Arial", "B", 16)     pdf.Cell(40, 10, "Hello, world")     err := pdf.OutputFileAndClose("hello.pdf")     if err != nil {         log.Fatalf("output failed,err:%s", err)     } }   // SingleImg2Pdf 单张png图片转pdf func SingleImg2Pdf(pathStr string) {     pdf := gofpdf.New("P", "mm", "A4", "")     pdf.AddPage()     pdf.SetFont("Arial", "", 11)     pdf.Image(pathStr, 10, 10, pdf.GetPageSizeStr("A4").Wd-20, 0, false, "", 0, "")     // pdf.Text(50, 20, "logo.png")     fileNameAll := path.Base(pathStr)     fileSuffix := path.Ext(pathStr)     fileStr := fmt.Sprintf("./pdfs/%s.pdf", fileNameAll[0:len(fileNameAll)-len(fileSuffix)])     err := pdf.OutputFileAndClose(fileStr)     if err != nil {         log.Fatalf("output failed,err:%s", err)     } }   func main() {     // Hello()     // SingleImg2Pdf("./images/22.jpg")     dirName := "./images"     files, err := ioutil.ReadDir(dirName)     if err != nil {         panic(err)     }     for _, file := range files {         fileNameAll := fmt.Sprintf("%s/%s", dirName, file.Name())         // fmt.Println(fileNameAll)         SingleImg2Pdf(fileNameAll)     } }

　　说明： 找出当前目录下的images里面的所有图片，逐个转成PDF文件