Only open file long enough to read in pages

2026-03-02 14:18:36 +09:00
parent be1fc5ec18
commit 6d4e7a7bfe
1 changed files with 6 additions and 4 deletions
@@ -726,11 +726,13 @@ class MainViewModel : BaseViewModel, IFontResolver, ICanCheckShutdown
            {
                // add other PDF pages
                // see: https://stackoverflow.com/a/65091204/3938401
-                var pdfFileToAdd = PdfReader.Open(filePath);
+                var pdfFileToAdd = PdfReader.Open(filePath, PdfDocumentOpenMode.Import);
+                var pgCount = pdfFileToAdd.PageCount;
+                pdfFileToAdd.Close();
                imageTitlePar.AddText(string.Format(" (PDF with {0} page{1}) ", 
-                    pdfFileToAdd.PageCount, 
-                    pdfFileToAdd.PageCount == 1 ? "" : "s"));
-                for (var j = 2; j <= pdfFileToAdd.PageCount; j++)
+                    pgCount, 
+                    pgCount == 1 ? "" : "s"));
+                for (var j = 2; j <= pgCount; j++)
                {
                    section.AddPageBreak();
                    paragraph = section.AddParagraph();