diff --git a/cpdfcommand.ml b/cpdfcommand.ml
index d3ca233..d4d1d28 100644
--- a/cpdfcommand.ml
+++ b/cpdfcommand.ml
@@ -4871,7 +4871,8 @@ let go () =
         write_pdf false pdf
   | Some (RemoveObj s) ->
       let pdf = get_single_pdf args.op true in
-        Cpdftweak.remove_obj pdf s
+        Cpdftweak.remove_obj pdf s;
+        write_pdf false pdf
   | Some (Verify standard) ->
       begin match standard with
       | "PDF/UA-1(matterhorn)" ->
diff --git a/cpdfmanual.pdf b/cpdfmanual.pdf
index b40c979..3d2458e 100644
Binary files a/cpdfmanual.pdf and b/cpdfmanual.pdf differ
diff --git a/cpdfmanual.tex b/cpdfmanual.tex
index 23d6ba0..515a3a0 100644
--- a/cpdfmanual.tex
+++ b/cpdfmanual.tex
@@ -2611,6 +2611,8 @@ font size and color.
     \noindent\small\verb!cpdf -remove-text in.pdf -o out.pdf!
   \end{framed}
 
+\noindent NB: Cpdf can only use characters available in the font specified. If necessary, supply your own font with \texttt{-load-ttf} (see below). Times Roman as used in the preceding example refers to the Standard PDF font Times Roman, not the Times Roman which is likely to be supplied with your computer system -- which may have more characters available.
+
   \subsection{Page Numbers and other Special Codes}
 \index{page!numbers}
   There are various special codes to include the page number in the text:
@@ -2761,7 +2763,7 @@ specifies the size in points:
     \noindent\small\verb!cpdf -add-text "-%Page-" -font-size 36 in.pdf -o out.pdf!
   \end{framed}
 
-  \noindent Adding \texttt{-embed-std14 <directory>}, given a directory holding the URW Base35 free fonts, will embed subsetted font files in the PDF for any of the Standard fonts used. These free fonts may be downloaded from \url{https://github.com/ArtifexSoftware/urw-base35-fonts}. This is important, for example, for PDF/A documents, which must have their fonts embedded.
+  \noindent Adding \texttt{-embed-std14 <directory>}, given a directory holding the URW Base35 free fonts, will embed subsetted font files in the PDF for any of the Standard fonts used. These free fonts may be downloaded from \url{https://github.com/ArtifexSoftware/urw-base35-fonts}. This is important, for example, for PDF/A or PDF/UA documents, which must have their fonts embedded.
 
 The standard fonts cover only the Latin characters, and are limiting. Other TrueType fonts may be introduced with the \texttt{-load-ttf} option, giving a name for, and the file name of the font. For example:
 
@@ -6289,12 +6291,8 @@ The following table lists each mechanically-verifiable test from the Matterhorn
   \noindent\verb!cpdf -remove-all-text in.pdf [<range>] -o out.pdf!
 
   \vspace{1.5mm}
-  \noindent\verb!cpdf -blacktext in.pdf [<range>] -o out.pdf!
-
-  \vspace{1.5mm}
-  \noindent\verb!cpdf -blacklines in.pdf [<range>] -o out.pdf!
-
-  \vspace{1.5mm}
+  \noindent\verb!cpdf -blacktext in.pdf [<range>] -o out.pdf!\\
+  \noindent\verb!cpdf -blacklines in.pdf [<range>] -o out.pdf!\\
   \noindent\verb!cpdf -blackfills in.pdf [<range>] -o out.pdf!
 
   \vspace{1.5mm}
@@ -6333,7 +6331,8 @@ The following table lists each mechanically-verifiable test from the Matterhorn
   \noindent\verb!cpdf -obj[-json] <object specification> in.pdf!
 
   \vspace{1.5mm}
-  \noindent\verb!cpdf -replace-obj <object specification>=<object> in.pdf!
+  \noindent\verb!cpdf -replace-obj <object specification>=<object> in.pdf -o out.pdf!\\
+  \noindent\verb!cpdf -remove-obj <object number> in.pdf -o out.pdf!
 
   \vspace{1.5mm}
   \noindent\verb!cpdf -extract-stream[-decompress] <object specification>!\\
@@ -6638,7 +6637,17 @@ We may also edit dictionary entries with \texttt{-replace-obj} by giving an obje
 
 \noindent Any part of the object specification not already present will be fabricated using direct nested dictionaries. For example, if \texttt{/MarkInfo} does not exist in the root dictionary, this command adds \texttt{/MarkInfo <</Marked true>>} to the root dictionary.
 
-Stream contents may be replaced with \texttt{-replace-stream}:
+An object may be remove with \texttt{-remove-obj}:
+
+  \begin{framed}
+  \small\noindent\verb!cpdf -remove-obj 6 in.pdf -o out.pdf!
+
+  \vspace{2.5mm}
+  \noindent Remove object 6 from \texttt{in.pdf}, writing to \texttt{out.pdf}. 
+  \end{framed}
+
+
+\noindent Stream contents may be replaced with \texttt{-replace-stream}:
 
   \begin{framed}
   \small\noindent\verb!cpdf -replace-stream 4 -replace-stream-with in.dat in.pdf -o out.pdf!
diff --git a/cpdftweak.ml b/cpdftweak.ml
index 2892d90..7b43284 100644
--- a/cpdftweak.ml
+++ b/cpdftweak.ml
@@ -313,7 +313,8 @@ let replace_obj pdf objspec obj =
   try Pdf.replace_chain pdf (split_chain objspec) obj with
     _ -> raise (Pdf.PDFError "Chain not found")
 
-let remove_obj pdf objspec = ()
+let remove_obj pdf objspec =
+  Pdf.removeobj pdf (int_of_string objspec)
 
 (* Replace a stream from a file e.g 4=data.dat replaces contents of object 4.
    The stream dictionary is altered only to correct the length. *)