Replace sRGB_IEC with MIT license compatible sRGB

New file is from Debian package icc-profiles-free

LICENSE.rst

@@ -18,9 +18,3 @@ IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-----
-
-sRGB_IEC61966-2-1_black_scaled.icc 
-
-To anyone who acknowledges that the file "sRGB_IEC61966-2-1_black scaled.icc" is provided "AS IS" WITH NO EXPRESS OR IMPLIED WARRANTY, permission to use, copy and distribute these file for any purpose is hereby granted without fee, provided that the file is not changed including the ICC copyright notice tag, and that the name of ICC shall not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. ICC makes no representations about the suitability of this software for any purpose.

RELEASE_NOTES.rst

@@ -5,6 +5,12 @@ Please always read this file before installing the package
 
 Download software here: https://github.com/jbarlow83/OCRmyPDF/tags
 
+v4.1.1:
+=======
+
+-  Replace IEC sRGB ICC profile with Debian's sRGB (from icc-profiles-free) which is more compatible with the MIT license
+-  More helpful error message for an error related to certain types of malformed PDFs
+
 
 v4.1:
 =====

ocrmypdf/main.py

@@ -797,6 +797,10 @@ def render_hocr_debug_page(
                          showBoundingboxes=True, invisibleText=False)
 
 
+class PdfMergeFailedError(Exception):
+    pass
+
+
 @active_if(options.pdf_renderer == 'hocr')
 @collate(
     input=[render_hocr_page, select_image_layer],
@@ -855,8 +859,13 @@ def add_text_layer(
         log.info("{0:4d}: rotating image layer {1} degrees".format(
             page_number(image), rotation, tx, ty))
 
-    page_text.mergeRotatedScaledTranslatedPage(
-        page_image, rotation, 1.0, tx, ty, expand=False)
+    try:
+        page_text.mergeRotatedScaledTranslatedPage(
+            page_image, rotation, 1.0, tx, ty, expand=False)
+    except (AttributeError, ValueError) as e:
+        if 'writeToStream' in str(e) or 'invalid literal' in str(e):
+            raise PdfMergeFailedError() from e
+
 
     pdf_output = pypdf.PdfFileWriter()
     pdf_output.addPage(page_text)
@@ -1058,6 +1067,17 @@ def do_ruffus_exception(ruffus_five_tuple):
         msg = "Error occurred while running this command:"
         _log.error(msg + '\n' + exc_value)
         return ExitCode.child_process_error
+    elif exc_name == 'ocrmypdf.main.PdfMergeFailedError':
+        _log.error(textwrap.dedent("""\
+            Failed to merge PDF image layer with OCR layer
+
+            Usually this happens because the input PDF file is mal-formed and
+            ocrmypdf cannot automatically correct the problem on its own.
+
+            Try using
+                ocrmypdf --pdf-renderer tesseract  [..other args..]
+            """))
+        return ExitCode.input_file
     elif not options.verbose:
         _log.error(exc_stack)
         return ExitCode.other_error