Add api.PageDims

pkg/api/api.go

@@ -41,7 +41,6 @@ import (
 	"time"
 
 	"github.com/pdfcpu/pdfcpu/pkg/log"
-	"github.com/pdfcpu/pdfcpu/pkg/pdfcpu"
 	pdf "github.com/pdfcpu/pdfcpu/pkg/pdfcpu"
 	"github.com/pdfcpu/pdfcpu/pkg/pdfcpu/validate"
 	"github.com/pkg/errors"
@@ -96,22 +95,35 @@ func PageCount(inFile string) (int, error) {
 	return ctx.PageCount, nil
 }
 
-// PageDims returns a sorted slice of mediaBox dimensions for inFile.
-func PageDims(inFile string) ([]pdf.Dim, error) {
-	ctx, err := ReadContextFile(inFile)
+// PageDims returns a sorted slice of mediaBox dimensions for rs.
+func PageDims(rs io.ReadSeeker, conf *pdf.Configuration) ([]pdf.Dim, error) {
+	ctx, err := ReadContext(rs, conf)
 	if err != nil {
 		return nil, err
 	}
+
 	pd, err := ctx.PageDims()
 	if err != nil {
 		return nil, err
 	}
 	if len(pd) != ctx.PageCount {
 		return nil, errors.New("pdfcpu: corrupt page dimensions")
 	}
+
 	return pd, nil
 }
 
+// PageDimsFile returns a sorted slice of mediaBox dimensions for inFile.
+func PageDimsFile(inFile string) ([]pdf.Dim, error) {
+	f, err := os.Open(inFile)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	return PageDims(f, pdf.NewDefaultConfiguration())
+}
+
 // ValidateContext validates a PDF context.
 func ValidateContext(ctx *pdf.Context) error {
 	return validate.XRefTable(ctx.XRefTable)
@@ -962,7 +974,7 @@ func ImportImages(rs io.ReadSeeker, w io.Writer, imgs []io.Reader, imp *pdf.Impo
 	conf.Cmd = pdf.IMPORTIMAGES
 
 	if imp == nil {
-		imp = pdfcpu.DefaultImportConfig()
+		imp = pdf.DefaultImportConfig()
 	}
 
 	var (

pkg/api/api_test.go

@@ -109,8 +109,9 @@ func TestPageDimensions(t *testing.T) {
 	msg := "TestPageDimensions"
 	for _, fn := range AllPDFs(t, inDir) {
 		inFile := filepath.Join(inDir, fn)
+
 		// Retrieve page dimensions for inFile.
-		_, err := PageDims(inFile)
+		_, err := PageDimsFile(inFile)
 		if err != nil {
 			t.Fatalf("%s: %v\n", msg, err)
 		}