diff --git a/ChangeLog b/ChangeLog
index 1b0e3fc4..ebaeca79 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -35,7 +35,7 @@
         Examples have been updated to use improved APIs. The old
         provideStreamData overloads will continue to be supported, so
         updating older code to use the new interfaces is entirely at the
-        programmer's descretion.
+        programmer's discretion.
 
 2022-06-25  Jay Berkenbilt  <ejb@ql.org>
 
diff --git a/include/qpdf/JSON.hh b/include/qpdf/JSON.hh
index 63c858b1..2bc88605 100644
--- a/include/qpdf/JSON.hh
+++ b/include/qpdf/JSON.hh
@@ -185,7 +185,7 @@ class JSON
     //     single-element arrays, and strings only.
     //   * Recursively walk the schema. In the items below, "schema
     //     object" refers to an object in the schema, and "checked
-    //     object" refers to the correspondingi part of the object
+    //     object" refers to the corresponding part of the object
     //     being checked.
     //   * If the schema object is a dictionary, the checked object
     //     must have a dictionary in the same place with the same
diff --git a/include/qpdf/qpdfjob-c.h b/include/qpdf/qpdfjob-c.h
index e404d580..961fece4 100644
--- a/include/qpdf/qpdfjob-c.h
+++ b/include/qpdf/qpdfjob-c.h
@@ -47,7 +47,7 @@ extern "C" {
 #endif
     /* SHORT INTERFACE -- These functions are single calls that take
      * care of the whole life cycle of QPDFJob. They can be used for
-     * one-shot ooperations where no additional configuration is
+     * one-shot operations where no additional configuration is
      * needed. See FULL INTERFACE below. */
 
     /* This function does the equivalent of running the qpdf