reading text from single pdf, step 1

exp/readtxt/readtxt.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+
+	"github.com/ledongthuc/pdf"
+)
+
+func main() {
+	pdf.DebugOn = true
+	content, err := readPdf("../files/74ahc138.pdf") // Read local pdf file
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println(content)
+	return
+}
+
+func readPdf(path string) (string, error) {
+	f, r, err := pdf.Open(path)
+	// remember close file
+	defer f.Close()
+	if err != nil {
+		return "", err
+	}
+	var buf bytes.Buffer
+	b, err := r.GetPlainText()
+	if err != nil {
+		return "", err
+	}
+	buf.ReadFrom(b)
+	return buf.String(), nil
+}

go.mod

@@ -3,6 +3,7 @@ module varia.zone/go-sh-manymanuals
 go 1.18
 
 require (
+	github.com/ledongthuc/pdf v0.0.0-20220302134840-0c2507a12d80 // indirect
 	github.com/otiai10/gosseract/v2 v2.3.1 // indirect
 	gopkg.in/gographics/imagick.v2 v2.6.0 // indirect
 )

go.sum

@@ -1,3 +1,5 @@
+github.com/ledongthuc/pdf v0.0.0-20220302134840-0c2507a12d80 h1:6Yzfa6GP0rIo/kULo2bwGEkFvCePZ3qHDDTC3/J9Swo=
+github.com/ledongthuc/pdf v0.0.0-20220302134840-0c2507a12d80/go.mod h1:imJHygn/1yfhB7XSJJKlFZKl/J+dCPAknuiaGOshXAs=
 github.com/otiai10/curr v0.0.0-20150429015615-9b4961190c95/go.mod h1:9qAhocn7zKJG+0mI8eUu6xqkFDYS2kb2saOteoSB3cE=
 github.com/otiai10/curr v1.0.0/go.mod h1:LskTG5wDwr8Rs+nNQ+1LlxRjAtTZZjtJW4rMXl6j4vs=
 github.com/otiai10/gosseract/v2 v2.3.1 h1:BFy9Rru7dzqEYX7/tJuEvjVPkkJck0f+b5fYzzr6/RM=