feat: update import paths and switch Go version to 1.23 (#2)

Author: IsAurora6

README.md

@@ -10,7 +10,7 @@ Features
 
 ## Install:
 
-`go get -u github.com/ledongthuc/pdf`
+`go get -u github.com/casibase/pdf`
 
 ## Examples:
 
@@ -26,7 +26,7 @@ import (
 	"bytes"
 	"fmt"
 
-	"github.com/ledongthuc/pdf"
+	"github.com/casibase/pdf"
 )
 
 func main() {
@@ -57,7 +57,7 @@ package main
 import (
 	"fmt"
 
-	"github.com/ledongthuc/pdf"
+	"github.com/casibase/pdf"
 )
 
 func main() {
@@ -94,7 +94,7 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/ledongthuc/pdf"
+	"github.com/casibase/pdf"
 )
 
 func main() {

examples/read_plain_text/main.go

@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"fmt"
 
-	"github.com/ledongthuc/pdf"
+	"github.com/casibase/pdf"
 )
 
 func main() {

examples/read_text_with_styles/main.go

@@ -3,7 +3,7 @@ package main
 import (
 	"fmt"
 
-	"github.com/ledongthuc/pdf"
+	"github.com/casibase/pdf"
 )
 
 func main() {

go.mod

@@ -1,3 +1,3 @@
-module github.com/ledongthuc/pdf
+module github.com/casibase/pdf
 
-go 1.24.1
+go 1.23.0

pdfpasswd/main.go

@@ -12,7 +12,7 @@ import (
 	"log"
 	"os"
 
-	"github.com/ledongthuc/pdf"
+	"github.com/casibase/pdf"
 )
 
 var (