diff --git a/stubs/fpdf2/@tests/requirements-stubtest.txt b/stubs/fpdf2/@tests/requirements-stubtest.txt
@@ -0,0 +1 @@
+cryptography
diff --git a/stubs/fpdf2/@tests/stubtest_allowlist.txt b/stubs/fpdf2/@tests/stubtest_allowlist.txt
@@ -12,3 +12,8 @@ fpdf.output.signer
 # Argument has default at runtime, but using it raises a TypeError.
 fpdf.FPDF.set_creation_date
 fpdf.fpdf.FPDF.set_creation_date
+
+# Checking the following function crashes stubtest 0.991, but seems to be
+# fixed in later versions.
+fpdf.FPDF.set_encryption
+fpdf.fpdf.FPDF.set_encryption
diff --git a/stubs/fpdf2/METADATA.toml b/stubs/fpdf2/METADATA.toml
@@ -1,5 +1,5 @@
-version = "2.6.0"
-requires = ["types-Pillow"]
+version = "2.6.1"
+requires = ["types-Pillow>=9.2.0"]
 
 [tool.stubtest]
 ignore_missing_stub = false
diff --git a/stubs/fpdf2/fpdf/__init__.pyi b/stubs/fpdf2/fpdf/__init__.pyi
@@ -1,6 +1,6 @@
 from pathlib import Path
 
-from .enums import XPos as XPos, YPos as YPos
+from .enums import Align as Align, XPos as XPos, YPos as YPos
 from .fpdf import FPDF as FPDF, TitleStyle as TitleStyle
 from .html import HTML2FPDF as HTML2FPDF, HTMLMixin as HTMLMixin
 from .prefs import ViewerPreferences as ViewerPreferences
@@ -15,6 +15,7 @@ __all__ = [
     "__version__",
     "__license__",
     "FPDF",
+    "Align",
     "XPos",
     "YPos",
     "Template",

diff --git a/stubs/fpdf2/fpdf/encryption.pyi b/stubs/fpdf2/fpdf/encryption.pyi
@@ -0,0 +1,89 @@
+from _typeshed import Incomplete, SupportsLenAndGetItem
+from collections.abc import Generator, Iterable
+from typing import ClassVar, Protocol, TypeVar
+from typing_extensions import TypeAlias
+
+from .enums import EncryptionMethod
+from .fpdf import FPDF
+from .syntax import Name, PDFObject
+
+_Key: TypeAlias = SupportsLenAndGetItem[int]
+_T_co = TypeVar("_T_co", covariant=True)
+
+import_error: ImportError | None
+
+class _SupportsGetItem(Protocol[_T_co]):
+    def __getitem__(self, __k: int) -> _T_co: ...
+
+class ARC4:
+    MOD: ClassVar[int]
+    def KSA(self, key: _Key) -> list[int]: ...
+    def PRGA(self, S: _SupportsGetItem[int]) -> Generator[int, None, None]: ...
+    def encrypt(self, key: _Key, text: Iterable[int]) -> list[int]: ...
+
+class CryptFilter:
+    type: Name
+    c_f_m: Name
+    length: int
+    def __init__(self, mode, length) -> None: ...
+    def serialize(self) -> str: ...
+
+class EncryptionDictionary(PDFObject):
+    filter: Name
+    length: int
+    r: int
+    o: str
+    u: str
+    v: int
+    p: int
+    encrypt_metadata: str  # not always defined
+    c_f: str  # not always defined
+    stm_f: Name
+    str_f: Name
+    def __init__(self, security_handler: StandardSecurityHandler) -> None: ...
+
+class StandardSecurityHandler:
+    DEFAULT_PADDING: ClassVar[bytes]
+    fpdf: FPDF
+    access_permission: int
+    owner_password: str
+    user_password: str
+    encryption_method: EncryptionMethod | None
+    cf: CryptFilter | None
+    key_length: int
+    v: int
+    r: int
+    encrypt_metadata: bool
+
+    # The following fields are only defined after a call to generate_passwords().
+    file_id: Incomplete
+    info_id: Incomplete
+    o: str
+    k: str
+    u: str
+
+    def __init__(
+        self,
+        fpdf: FPDF,
+        owner_password: str,
+        user_password: str | None = None,
+        permission: Incomplete | None = None,
+        encryption_method: EncryptionMethod | None = None,
+        encrypt_metadata: bool = False,
+    ) -> None: ...
+    def generate_passwords(self, file_id) -> None: ...
+    def get_encryption_obj(self) -> EncryptionDictionary: ...
+    def encrypt(self, text: str | bytes | bytearray, obj_id) -> bytes: ...
+    def encrypt_string(self, string, obj_id): ...
+    def encrypt_stream(self, stream, obj_id): ...
+    def is_aes_algorithm(self) -> bool: ...
+    def encrypt_bytes(self, data, obj_id) -> list[int]: ...
+    def encrypt_AES_cryptography(self, key, data): ...
+    def get_initialization_vector(self, size: int) -> bytearray: ...
+    def padded_password(self, password: str) -> bytearray: ...
+    def generate_owner_password(self) -> str: ...
+    def generate_user_password(self) -> str: ...
+    def generate_encryption_key(self) -> bytes: ...
+
+def md5(data: bytes) -> bytes: ...
+def int32(n: int) -> int: ...
diff --git a/stubs/fpdf2/fpdf/enums.pyi b/stubs/fpdf2/fpdf/enums.pyi
@@ -1,5 +1,6 @@
-from _typeshed import Incomplete, Self
-from enum import Enum, Flag, IntEnum
+from _typeshed import Self
+from enum import Enum, Flag, IntEnum, IntFlag
+from typing_extensions import Literal
 
 from .syntax import Name
 
@@ -182,4 +183,23 @@ class FontDescriptorFlags(Flag):
     ITALIC: int
     FORCE_BOLD: int
 
-__pdoc__: Incomplete
+class AccessPermission(IntFlag):
+    PRINT_LOW_RES: int
+    MODIFY: int
+    COPY: int
+    ANNOTATION: int
+    FILL_FORMS: int
+    COPY_FOR_ACCESSIBILITY: int
+    ASSEMBLE: int
+    PRINT_HIGH_RES: int
+    @classmethod
+    def all(cls) -> int: ...
+    @classmethod
+    def none(cls) -> Literal[0]: ...
+
+class EncryptionMethod(Enum):
+    NO_ENCRYPTION: int
+    RC4: int
+    AES_128: int
+
+__pdoc__: dict[str, bool]
diff --git a/stubs/fpdf2/fpdf/fpdf.pyi b/stubs/fpdf2/fpdf/fpdf.pyi
@@ -3,6 +3,7 @@ from _typeshed import Incomplete, StrPath
 from collections.abc import Callable, Iterable, Sequence
 from contextlib import _GeneratorContextManager
 from io import BytesIO
+from re import Pattern
 from typing import Any, ClassVar, NamedTuple, overload
 from typing_extensions import Literal, TypeAlias
 
@@ -72,6 +73,8 @@ class FPDF:
     MARKDOWN_BOLD_MARKER: ClassVar[str]
     MARKDOWN_ITALICS_MARKER: ClassVar[str]
     MARKDOWN_UNDERLINE_MARKER: ClassVar[str]
+    MARKDOWN_LINK_REGEX: ClassVar[Pattern[str]]
+    MARKDOWN_LINK_COLOR: ClassVar[Incomplete | None]
 
     HTML2FPDF_CLASS: ClassVar[type[HTML2FPDF]]
 
@@ -144,6 +147,16 @@ class FPDF:
         format: _Format | tuple[float, float] = ...,
         font_cache_dir: Literal["DEPRECATED"] = ...,
     ) -> None: ...
+    # The following definition crashes stubtest 0.991, but seems to be fixed
+    # in later versions.
+    # def set_encryption(
+    #    self,
+    #    owner_password: str,
+    #    user_password: str | None = None,
+    #    encryption_method: EncryptionMethod | str = ...,
+    #    permissions: AccessPermission = ...,
+    #    encrypt_metadata: bool = False,
+    # ) -> None: ...
     # args and kwargs are passed to HTML2FPDF_CLASS constructor.
     def write_html(self, text: str, *args: Any, **kwargs: Any) -> None: ...
     @property
@@ -288,8 +301,8 @@ class FPDF:
     def set_font_size(self, size: float) -> None: ...
     def set_char_spacing(self, spacing: float) -> None: ...
     def set_stretching(self, stretching: float) -> None: ...
-    def add_link(self) -> int: ...
-    def set_link(self, link, y: int = ..., x: int = ..., page: int = ..., zoom: float | Literal["null"] = ...) -> None: ...
+    def add_link(self, y: float = 0, x: float = 0, page: int = -1, zoom: float | Literal["null"] = ...) -> int: ...
+    def set_link(self, link, y: float = 0, x: float = 0, page: int = -1, zoom: float | Literal["null"] = ...) -> None: ...
     def link(
         self, x: float, y: float, w: float, h: float, link: str | int, alt_text: str | None = ..., border_width: int = ...
     ) -> AnnotationDict: ...
@@ -364,6 +377,9 @@ class FPDF:
     def text(self, x: float, y: float, txt: str = ...) -> None: ...
     def rotate(self, angle: float, x: float | None = ..., y: float | None = ...) -> None: ...
     def rotation(self, angle: float, x: float | None = ..., y: float | None = ...) -> _GeneratorContextManager[None]: ...
+    def skew(
+        self, ax: float = 0, ay: float = 0, x: float | None = None, y: float | None = None
+    ) -> _GeneratorContextManager[None]: ...
     def local_context(
         self,
         font_family: Incomplete | None = ...,
@@ -415,14 +431,15 @@ class FPDF:
     def image(
         self,
         name: str | Image.Image | BytesIO | StrPath,
-        x: float | None = ...,
-        y: float | None = ...,
-        w: float = ...,
-        h: float = ...,
+        x: float | Align | None = None,
+        y: float | None = None,
+        w: float = 0,
+        h: float = 0,
         type: str = ...,
         link: str = ...,
-        title: str | None = ...,
-        alt_text: str | None = ...,
+        title: str | None = None,
+        alt_text: str | None = None,
+        dims: tuple[float, float] | None = None,
     ) -> _Image: ...
     def ln(self, h: float | None = ...) -> None: ...
     def get_x(self) -> float: ...
@@ -477,4 +494,4 @@ class FPDF:
         level5: TitleStyle | None = ...,
         level6: TitleStyle | None = ...,
     ) -> None: ...
-    def start_section(self, name: str, level: int = ...) -> None: ...
+    def start_section(self, name: str, level: int = 0, strict: bool = True) -> None: ...
diff --git a/stubs/fpdf2/fpdf/html.pyi b/stubs/fpdf2/fpdf/html.pyi
@@ -3,6 +3,7 @@ from collections.abc import Callable
 from html.parser import HTMLParser
 from logging import Logger
 from re import Match, Pattern
+from typing import ClassVar
 from typing_extensions import Final
 
 from fpdf import FPDF
@@ -24,6 +25,7 @@ def px2mm(px: float) -> float: ...
 def color_as_decimal(color: str | None = ...) -> tuple[int, int, int] | None: ...
 
 class HTML2FPDF(HTMLParser):
+    HTML_UNCLOSED_TAGS: ClassVar[tuple[str, ...]]
     pdf: Incomplete
     image_map: Incomplete
     li_tag_indent: Incomplete
@@ -55,15 +57,17 @@ class HTML2FPDF(HTMLParser):
     heading_sizes: Incomplete
     heading_above: float
     heading_below: float
+    warn_on_tags_not_matching: bool
     def __init__(
         self,
         pdf: FPDF,
-        image_map: Callable[[str], str] | None = ...,
-        li_tag_indent: int = ...,
-        dd_tag_indent: int = ...,
-        table_line_separators: bool = ...,
+        image_map: Callable[[str], str] | None = None,
+        li_tag_indent: int = 5,
+        dd_tag_indent: int = 10,
+        table_line_separators: bool = False,
         ul_bullet_char: str = ...,
-        heading_sizes: Incomplete | None = ...,
+        heading_sizes: Incomplete | None = None,
+        warn_on_tags_not_matching: bool = True,
         **_: object,
     ): ...
     def width2unit(self, length): ...

diff --git a/stubs/fpdf2/fpdf/image_parsing.pyi b/stubs/fpdf2/fpdf/image_parsing.pyi
@@ -1,8 +1,11 @@
 from typing import Any
 from typing_extensions import Literal, TypeAlias
 
+from PIL.Image import Resampling
+
 _ImageFilter: TypeAlias = Literal["AUTO", "FlateDecode", "DCTDecode", "JPXDecode"]
 
+RESAMPLE: Resampling
 SUPPORTED_IMAGE_FILTERS: tuple[_ImageFilter, ...]
 
 def load_image(filename): ...

diff --git a/stubs/fpdf2/fpdf/line_break.pyi b/stubs/fpdf2/fpdf/line_break.pyi
@@ -11,7 +11,10 @@ class Fragment:
     characters: list[str]
     graphics_state: dict[str, Incomplete]
     k: float
-    def __init__(self, characters: list[str] | str, graphics_state: dict[str, Incomplete], k: float) -> None: ...
+    url: str | None
+    def __init__(
+        self, characters: list[str] | str, graphics_state: dict[str, Incomplete], k: float, url: str | None = None
+    ) -> None: ...
     @property
     def font(self): ...
     @font.setter
@@ -96,6 +99,7 @@ class CurrentLine:
         k: float,
         original_fragment_index: int,
         original_character_index: int,
+        url: str | None = None,
     ): ...
     def manual_break(self, justify: bool = ..., trailing_nl: bool = ...): ...
     def automatic_break_possible(self): ...

diff --git a/stubs/fpdf2/fpdf/linearization.pyi b/stubs/fpdf2/fpdf/linearization.pyi
@@ -1,6 +1,7 @@
 from _typeshed import Incomplete
 from typing_extensions import Final
 
+from .encryption import StandardSecurityHandler
 from .output import ContentWithoutID, OutputProducer
 from .syntax import PDFContentStream, PDFObject
 
@@ -34,7 +35,7 @@ class PDFXrefAndTrailer(ContentWithoutID):
     def is_first_xref(self) -> bool: ...
     @property
     def is_main_xref(self) -> bool: ...
-    def serialize(self) -> str: ...
+    def serialize(self, _security_handler: StandardSecurityHandler | None = None) -> str: ...
 
 class PDFHintStream(PDFContentStream):
     s: Incomplete | None

diff --git a/stubs/fpdf2/fpdf/output.pyi b/stubs/fpdf2/fpdf/output.pyi
@@ -4,17 +4,19 @@ from logging import Logger
 from typing_extensions import Final
 
 from .annotations import AnnotationDict
+from .encryption import StandardSecurityHandler
 from .syntax import Name, PDFArray, PDFContentStream, PDFObject
 
 LOGGER: Logger
 ZOOM_CONFIGS: Final[dict[str, tuple[str, ...]]]
 
-class ContentWithoutID: ...
+class ContentWithoutID:
+    def serialize(self, _security_handler: StandardSecurityHandler | None = None) -> str | None: ...
 
 class PDFHeader(ContentWithoutID):
     pdf_version: str
     def __init__(self, pdf_version: str) -> None: ...
-    def serialize(self) -> str: ...
+    def serialize(self, _security_handler: StandardSecurityHandler | None = None) -> str: ...
 
 class PDFFont(PDFObject):
     type: Name
@@ -149,7 +151,8 @@ class PDFPage(PDFObject):
     struct_parents: Incomplete | None
     resources: Incomplete | None
     parent: Incomplete | None
-    def __init__(self, duration: Incomplete | None, transition, contents) -> None: ...
+    def __init__(self, duration: Incomplete | None, transition, contents, index) -> None: ...
+    def index(self): ...
     def dimensions(self) -> tuple[float | None, float | None]: ...
     def set_dimensions(self, width_pt: float | None, height_pt: float | None) -> None: ...
 
@@ -162,15 +165,15 @@ class PDFPagesRoot(PDFObject):
 
 class PDFExtGState(PDFObject):
     def __init__(self, dict_as_str) -> None: ...
-    def serialize(self, obj_dict: object = ...) -> str: ...
+    def serialize(self, obj_dict: object = None, _security_handler: StandardSecurityHandler | None = None) -> str: ...
 
 class PDFXrefAndTrailer(ContentWithoutID):
     output_builder: Incomplete
     count: int
     catalog_obj: Incomplete | None
     info_obj: Incomplete | None
     def __init__(self, output_builder) -> None: ...
-    def serialize(self) -> str: ...
+    def serialize(self, _security_handler: StandardSecurityHandler | None = None) -> str: ...
 
 class OutputProducer:
     fpdf: Incomplete

diff --git a/stubs/fpdf2/fpdf/structure_tree.pyi b/stubs/fpdf2/fpdf/structure_tree.pyi
@@ -2,12 +2,13 @@ from _typeshed import Incomplete
 from collections import defaultdict
 from collections.abc import Generator, Iterable
 
+from .encryption import StandardSecurityHandler
 from .syntax import PDFArray, PDFObject, PDFString
 
 class NumberTree(PDFObject):
     nums: defaultdict[Incomplete, list[Incomplete]]
     def __init__(self) -> None: ...
-    def serialize(self, obj_dict: object = ...) -> str: ...
+    def serialize(self, obj_dict: object = ..., _security_handler: StandardSecurityHandler | None = None) -> str: ...
 
 class StructTreeRoot(PDFObject):
     type: str