from __future__ import annotations
import io
from typing import List, Iterator, Tuple, Optional, Any, TYPE_CHECKING, Callable
from ctypes import *
from datetime import datetime
from numbers import Number
from pdftools_sdk.internal import _lib
from pdftools_sdk.internal.utils import _string_to_utf16, _utf16_to_string
from pdftools_sdk.internal.streams import _StreamDescriptor, _NativeStream
from pdftools_sdk.internal.native_base import _NativeBase
from pdftools_sdk.internal.native_object import _NativeObject
import pdftools_sdk.internal
if TYPE_CHECKING:
from pdftools_sdk.pdf.document import Document
from pdftools_sdk.optimization.profiles.profile import Profile
from pdftools_sdk.pdf.output_options import OutputOptions
else:
Document = "pdftools_sdk.pdf.document.Document"
Profile = "pdftools_sdk.optimization.profiles.profile.Profile"
OutputOptions = "pdftools_sdk.pdf.output_options.OutputOptions"
[docs]
class Optimizer(_NativeObject):
"""
The class to optimize PDF documents
"""
[docs]
def __init__(self):
"""
"""
_lib.PdfToolsOptimization_Optimizer_New.argtypes = []
_lib.PdfToolsOptimization_Optimizer_New.restype = c_void_p
ret_val = _lib.PdfToolsOptimization_Optimizer_New()
if ret_val is None:
_NativeBase._throw_last_error(False)
super()._initialize(ret_val)
[docs]
def optimize_document(self, in_doc: Document, out_stream: io.IOBase, profile: Profile, out_options: Optional[OutputOptions] = None) -> Document:
"""
Optimize the PDF document
Args:
inDoc (pdftools_sdk.pdf.document.Document):
The input PDF document
outStream (io.IOBase):
The stream to which the output PDF is written
profile (pdftools_sdk.optimization.profiles.profile.Profile):
The profile defining the optimization parameters.
outOptions (Optional[pdftools_sdk.pdf.output_options.OutputOptions]):
The PDF output options, e.g. to encrypt the output document.
Returns:
pdftools_sdk.pdf.document.Document:
The optimized result PDF, which can be used
as a new input for further processing.
Note that, this object must be disposed before the output stream
object (method argument `outStream`).
Raises:
pdftools_sdk.license_error.LicenseError:
The license check has failed.
ValueError:
An invalid encryption was specified in `outOptions`.
pdftools_sdk.processing_error.ProcessingError:
The processing has failed.
OSError:
Writing to the output PDF has failed.
pdftools_sdk.generic_error.GenericError:
A generic error occurred.
"""
from pdftools_sdk.pdf.document import Document
from pdftools_sdk.optimization.profiles.profile import Profile
from pdftools_sdk.pdf.output_options import OutputOptions
if not isinstance(in_doc, Document):
raise TypeError(f"Expected type {Document.__name__}, but got {type(in_doc).__name__}.")
if not isinstance(out_stream, io.IOBase):
raise TypeError(f"Expected type {io.IOBase.__name__}, but got {type(out_stream).__name__}.")
if not isinstance(profile, Profile):
raise TypeError(f"Expected type {Profile.__name__}, but got {type(profile).__name__}.")
if out_options is not None and not isinstance(out_options, OutputOptions):
raise TypeError(f"Expected type {OutputOptions.__name__} or None, but got {type(out_options).__name__}.")
_lib.PdfToolsOptimization_Optimizer_OptimizeDocument.argtypes = [c_void_p, c_void_p, POINTER(pdftools_sdk.internal.streams._StreamDescriptor), c_void_p, c_void_p]
_lib.PdfToolsOptimization_Optimizer_OptimizeDocument.restype = c_void_p
ret_val = _lib.PdfToolsOptimization_Optimizer_OptimizeDocument(self._handle, in_doc._handle, _StreamDescriptor(out_stream), profile._handle, out_options._handle if out_options is not None else None)
if ret_val is None:
_NativeBase._throw_last_error(False)
return Document._create_dynamic_type(ret_val)
@staticmethod
def _create_dynamic_type(handle):
return Optimizer._from_handle(handle)
@classmethod
def _from_handle(cls, handle):
"""
Internal factory method for constructing an instance using an internal handle.
This method creates an instance of the class by bypassing the public constructor.
"""
instance = Optimizer.__new__(cls) # Bypass __init__
instance._initialize(handle)
return instance
def _initialize(self, handle):
super()._initialize(handle)