diff --git a/README.md b/README.md
index ab757ce..cb4a869 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,11 @@
-# nested-pdf-merge
+# bookdir2pdf
 Merges a directory structure of images into a PDF with nested bookmarks.
 
 
 
 The PDF here was made using:
 
-`./nested-pdf-merge.py -i test_dir/ -s "."`
+`./bookdir2pdf.py -i test_dir/ -s "."`
 
 The `"."` is what seperates the ordering numbers from the bookmark name in the directory name.
 
diff --git a/nested-pdf-merge.py b/bookdir2pdf.py
similarity index 98%
rename from nested-pdf-merge.py
rename to bookdir2pdf.py
index 280e549..5027a4c 100644
--- a/nested-pdf-merge.py
+++ b/bookdir2pdf.py
@@ -111,6 +111,7 @@ def dir_path(string):
 print("Creating nested bookmarks...")
 ident = ""
 ident_str = "--- "
+pagenum_sep = "\t\tPage #"
 last_page_index = 0
 path_list = list()
 bookmark_list = list()
@@ -125,7 +126,7 @@ def iterdict(d, base_path=""):
                 bm_name = k
             else:
                 bm_name = args["order_number_seperator"].join(k.split(args["order_number_seperator"])[1:]).strip(" ")
-            print(ident + bm_name + "\tPage #" + str(last_page_index + 1))
+            print(ident + bm_name + pagenum_sep + str(last_page_index + 1))
             ident += ident_str
             
             path_list.append(k)
diff --git a/build_portable.bat b/build_portable.bat
index 1d316ff..cfca33a 100644
--- a/build_portable.bat
+++ b/build_portable.bat
@@ -23,11 +23,11 @@ del /f /s /q "%RELEASEDIR%" 1>nul 2>&1
 rmdir /s /q "%RELEASEDIR%" 1>nul 2>&1
 
 echo Building portable EXE...
-call conda run -n nested-pdf-merge_build pyinstaller ^
+call conda run -n bookdir2pdf_build pyinstaller ^
     --noconfirm ^
     --onefile ^
     --icon=icon.ico ^
-    nested-pdf-merge.py
+    bookdir2pdf.py
 if errorlevel 1 goto ERROR
 
 del /f /s /q "%BUILDDIR%" 1>nul 2>&1
diff --git a/environment-build.yml b/environment-build.yml
index b77d2c0..88ff8ad 100644
--- a/environment-build.yml
+++ b/environment-build.yml
@@ -1,4 +1,4 @@
-name: nested-pdf-merge_build
+name: bookdir2pdf_build
 channels:
   - defaults
 dependencies:
diff --git a/environment.yml b/environment.yml
index 20de8c7..e07d06c 100644
--- a/environment.yml
+++ b/environment.yml
@@ -1,4 +1,4 @@
-name: nested-pdf-merge
+name: bookdir2pdf
 channels:
   - defaults
 dependencies: