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diff --git a/src/ocrmypdf/_exec/ghostscript.py b/src/ocrmypdf/_exec/ghostscript.py
index 1146cc5f..43f3915c 100644
--- a/src/ocrmypdf/_exec/ghostscript.py
+++ b/src/ocrmypdf/_exec/ghostscript.py
@@ -40,15 +40,7 @@ For details see:
# Most reliable what to get the bitness of Python interpreter, according to Python docs
_is_64bit = sys.maxsize > 2 ** 32
-_gswin = None
-if os.name == 'nt':
- if _is_64bit:
- _gswin = 'gswin64c'
- else:
- _gswin = 'gswin32c'
-
-GS = _gswin if _gswin else 'gs'
-del _gswin
+GS = '@gs@'
def version():
diff --git a/src/ocrmypdf/_exec/jbig2enc.py b/src/ocrmypdf/_exec/jbig2enc.py
index 2e8a058b..65a09088 100644
--- a/src/ocrmypdf/_exec/jbig2enc.py
+++ b/src/ocrmypdf/_exec/jbig2enc.py
@@ -14,7 +14,7 @@ from ocrmypdf.subprocess import get_version, run
def version():
- return get_version('jbig2', regex=r'jbig2enc (\d+(\.\d+)*).*')
+ return get_version('@jbig2@', regex=r'jbig2enc (\d+(\.\d+)*).*')
def available():
@@ -27,7 +27,7 @@ def available():
def convert_group(*, cwd, infiles, out_prefix):
args = [
- 'jbig2',
+ '@jbig2@',
'-b',
out_prefix,
'-s', # symbol mode (lossy)
@@ -46,7 +46,7 @@ def convert_group_mp(args):
def convert_single(*, cwd, infile, outfile):
- args = ['jbig2', '-p', infile]
+ args = ['@jbig2@', '-p', infile]
with open(outfile, 'wb') as fstdout:
proc = run(args, cwd=cwd, stdout=fstdout, stderr=PIPE)
proc.check_returncode()
diff --git a/src/ocrmypdf/_exec/pngquant.py b/src/ocrmypdf/_exec/pngquant.py
index ca8a4542..d0544174 100644
--- a/src/ocrmypdf/_exec/pngquant.py
+++ b/src/ocrmypdf/_exec/pngquant.py
@@ -19,7 +19,7 @@ from ocrmypdf.subprocess import get_version, run
def version():
- return get_version('pngquant', regex=r'(\d+(\.\d+)*).*')
+ return get_version('@pngquant@', regex=r'(\d+(\.\d+)*).*')
def available():
@@ -46,7 +46,7 @@ def input_as_png(input_file: Path):
def quantize(input_file: Path, output_file: Path, quality_min: int, quality_max: int):
with input_as_png(input_file) as input_stream:
args = [
- 'pngquant',
+ '@pngquant@',
'--force',
'--skip-if-larger',
'--quality',
diff --git a/src/ocrmypdf/_exec/tesseract.py b/src/ocrmypdf/_exec/tesseract.py
index a3688f65..61f54465 100644
--- a/src/ocrmypdf/_exec/tesseract.py
+++ b/src/ocrmypdf/_exec/tesseract.py
@@ -75,7 +75,7 @@ class TesseractVersion(StrictVersion):
def version() -> str:
- return get_version('tesseract', regex=r'tesseract\s(.+)')
+ return get_version('@tesseract@', regex=r'tesseract\s(.+)')
def has_user_words():
@@ -97,7 +97,7 @@ def get_languages():
msg += output
return msg
- args_tess = ['tesseract', '--list-langs']
+ args_tess = ['@tesseract@', '--list-langs']
try:
proc = run(
args_tess,
@@ -119,7 +119,7 @@ def get_languages():
def tess_base_args(langs: List[str], engine_mode: Optional[int]) -> List[str]:
- args = ['tesseract']
+ args = ['@tesseract@']
if langs:
args.extend(['-l', '+'.join(langs)])
if engine_mode is not None:
diff --git a/src/ocrmypdf/_exec/unpaper.py b/src/ocrmypdf/_exec/unpaper.py
index aec365c2..cc5cb7e4 100644
--- a/src/ocrmypdf/_exec/unpaper.py
+++ b/src/ocrmypdf/_exec/unpaper.py
@@ -31,7 +31,7 @@ log = logging.getLogger(__name__)
def version() -> str:
- return get_version('unpaper')
+ return get_version('@unpaper@')
def _setup_unpaper_io(tmpdir: Path, input_file: Path) -> Tuple[Path, Path]:
@@ -71,7 +71,7 @@ def _setup_unpaper_io(tmpdir: Path, input_file: Path) -> Tuple[Path, Path]:
def run(
input_file: Path, output_file: Path, *, dpi: DecFloat, mode_args: List[str]
) -> None:
- args_unpaper = ['unpaper', '-v', '--dpi', str(round(dpi, 6))] + mode_args
+ args_unpaper = ['@unpaper@', '-v', '--dpi', str(round(dpi, 6))] + mode_args
with TemporaryDirectory() as tmpdir:
input_pnm, output_pnm = _setup_unpaper_io(Path(tmpdir), input_file)
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