301 lines
11 KiB
OCaml
301 lines
11 KiB
OCaml
(** Coherent PDF Tools Core Routines *)
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open Pdfutil
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type color =
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Grey of float
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| RGB of float * float * float
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| CYMK of float * float * float * float
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(** {2 Debug} *)
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(** Debug: Print out a PDF in readable form to the terminal *)
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val print_pdf_objs : Pdf.t -> unit
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(** {2 Working with pages} *)
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(** Like [Pdfpage.endpage], but from an input and possible password - does the
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minimal work to find the number of pages. *)
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val endpage_io : ?revision:int -> Pdfio.input -> string option -> string option -> int
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(** Given a function from page number and page to page, a document, and a list
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of page numbers to apply it to, apply the function to all those pages. *)
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val process_pages : (int -> Pdfpage.t -> Pdfpage.t * int * Pdftransform.transform_matrix) ->
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Pdf.t -> int list -> Pdf.t
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(** Same as [process_pages], but iterate rather than map. *)
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val iter_pages : (int -> Pdfpage.t -> unit) -> Pdf.t -> int list -> unit
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(** Same as [process_pages] but return the list of outputs of the map function. *)
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val map_pages : (int -> Pdfpage.t -> 'a) -> Pdf.t -> int list -> 'a list
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val copy_cropbox_to_mediabox : Pdf.t -> int list -> Pdf.t
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(** {2 Bookmarks} *)
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(** [parse_bookmark_file verify pdf input] parses the bookmark file in [input].
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Details of the bookmark file format can be found in cpdfmanual.pdf *)
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val parse_bookmark_file : bool -> Pdf.t -> Pdfio.input -> Pdfmarks.t list
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(** [add_bookmarks verify input pdf] adds bookmarks from the bookmark file
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give. If [verify] is given, bookmarks will be verified to ensure, for example,
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that they are not out of the page range. *)
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val add_bookmarks : json:bool -> bool -> Pdfio.input -> Pdf.t -> Pdf.t
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(** [list_bookmarks encoding range pdf output] lists the bookmarks to the given
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output in the format specified in cpdfmanual.pdf *)
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val list_bookmarks : json:bool -> Cpdfmetadata.encoding -> int list -> Pdf.t -> Pdfio.output -> unit
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(** {2 Stamping} *)
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(** [combine_pages fast under over scaletofit swap equalize] combines the page
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content of two PDFs, page-by-page. If [equalize] is true the output will have
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the same number of pages as the shorter file. If [scaletofit] is true, the
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[over] file will be scaled to fit. If [swap] is true, [over] and [under] are
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swapped. If [fast] is true, the PDFs are assumed to be well-formed and no
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fixes are done. *)
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val combine_pages : bool -> Pdf.t -> Pdf.t -> bool -> bool -> bool -> Pdf.t
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(** [stamp relative_to_cropbox position topline midline fast scale_to_fit isover range over pdf] stamps the first page of
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[over] over each page of the PDF. The arguments have the same meaning as in
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[combine_pages]. *)
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val stamp : bool -> Cpdfposition.position -> bool -> bool -> bool -> bool -> bool -> int list -> Pdf.t -> Pdf.t -> Pdf.t
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(** {2 Splitting PDFs} *)
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(** Split a PDF on bookmarks of a given level or below. Level 0 is top level. *)
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val split_on_bookmarks : Pdf.t -> int -> Pdf.t list
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(** {2 Listing fonts} *)
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(** Print font list to stdout *)
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val print_fonts : Pdf.t -> int list -> unit
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(** Return font list. Page number, name, subtype, basefont, encoding. *)
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val list_fonts : Pdf.t -> int list -> (int * string * string * string * string) list
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(** {2 Adding text} *)
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(** Justification of multiline text *)
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type justification =
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| LeftJustify
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| CentreJustify
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| RightJustify
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(** Call [add_texts metrics linewidth outline fast fontname font bates batespad colour
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position linespacing fontsize underneath text pages orientation
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relative_to_cropbox midline_adjust topline filename pdf]. For details see cpdfmanual.pdf *)
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val addtexts :
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bool -> (*metrics*)
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float -> (*linewidth*)
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bool -> (*outline*)
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bool -> (*fast*)
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string -> (*fontname*)
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Pdftext.standard_font option -> (*font*)
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bool -> (* embed font *)
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int -> (* bates number *)
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int option -> (* bates padding width *)
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color -> (*colour*)
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Cpdfposition.position -> (*position*)
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float -> (*linespacing*)
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float -> (*fontsize*)
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bool -> (*underneath*)
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string ->(*text*)
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int list ->(*page range*)
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Cpdfposition.orientation ->(*orientation*)
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bool ->(*relative to cropbox?*)
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float ->(*opacity*)
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justification ->(*justification*)
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bool ->(*midline adjust?*)
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bool ->(*topline adjust?*)
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string ->(*filename*)
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float option -> (*extract_text_font_size*)
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string -> (* shift *)
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?raw:bool -> (* raw *)
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Pdf.t ->(*pdf*)
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Pdf.t
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val addrectangle :
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bool ->
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float * float ->
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color ->
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bool ->
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float ->
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float ->
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Cpdfposition.position ->
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bool -> bool -> int list -> Pdf.t -> Pdf.t
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val metrics_howmany : unit -> int
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val metrics_text : int -> string
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val metrics_x : int -> float
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val metrics_y : int -> float
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val metrics_rot : int -> float
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val metrics_baseline_adjustment : unit -> float
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(** These functions returns some details about the text if [addtexts] is called with [metrics] true. The integer arguments are 1 for the first one, 2 for the second etc. Call [metrics_howmany] first to find out how many. *)
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(** Remove text from the given pages. *)
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val removetext : int list -> Pdf.t -> Pdf.t
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(** {2 Page geometry} *)
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(** Print page info (Mediabox etc) to standard output. *)
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val output_page_info : Pdf.t -> int list -> unit
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(** True if a given page in a PDF has a given box *)
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val hasbox : Pdf.t -> int -> string -> bool
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(** [crop_pdf xywhlist pdf range] sets the cropbox on the given pages. *)
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val crop_pdf : ?box:string -> (float * float * float * float) list -> Pdf.t -> int list -> Pdf.t
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val hard_box : Pdf.t -> int list -> string -> bool -> bool -> Pdf.t
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(** [set_mediabox xywhlist pdf range] sets the media box on the given pages. *)
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val set_mediabox : (float * float * float * float) list -> Pdf.t -> int list -> Pdf.t
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(** [setBox boxname x y w h pdf range] sets the given box on the given pages. *)
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val setBox : string -> float -> float -> float -> float -> Pdf.t -> int list -> Pdf.t
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(** Remove any cropping from the given pages. *)
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val remove_cropping_pdf : Pdf.t -> int list -> Pdf.t
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(** Remove any trim box from the given pages. *)
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val remove_trim_pdf : Pdf.t -> int list -> Pdf.t
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(** Remove any bleed box from the given pages. *)
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val remove_bleed_pdf : Pdf.t -> int list -> Pdf.t
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(** Remove any art box from the given pages. *)
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val remove_art_pdf : Pdf.t -> int list -> Pdf.t
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(** Change rotation to a given value 0, 90, 180, 270 on given pages. *)
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val rotate_pdf : int -> Pdf.t -> int list -> Pdf.t
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(** Rotate clockwise by 0, 90, 180, 270 on given pages. *)
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val rotate_pdf_by : int -> Pdf.t -> int list -> Pdf.t
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(** Rotate the contents by the given angle on the given pages. If [fast] is true, assume PDF is well-formed. *)
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val rotate_contents : ?fast:bool -> float -> Pdf.t -> int list -> Pdf.t
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(** Modify the rotation of the page and its contents to leave the rotation at 0 with the page effectively unaltered. *)
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val upright : ?fast:bool -> int list -> Pdf.t -> Pdf.t
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(** Flip the given pages vertically *)
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val vflip_pdf : ?fast:bool -> Pdf.t -> int list -> Pdf.t
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(** Flip the given pages horizontally *)
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val hflip_pdf : ?fast:bool -> Pdf.t -> int list -> Pdf.t
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(** Shift a PDF in x and y (in pts) in the given pages. List of (x, y) pairs is
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for all pages in pdf. *)
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val shift_pdf : ?fast:bool -> (float * float) list -> Pdf.t -> int list -> Pdf.t
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(** Scale a PDF in sx, sy in the given pages. List of (sx, sy) pairs is
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for all pages in pdf. *)
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val scale_pdf : ?fast:bool -> (float * float) list -> Pdf.t -> int list -> Pdf.t
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(** [scale_to_fit_pdf fast position input_scale x y op pdf range] scales a page to fit the
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page size given by (x, y) and by the [input_scale] (e.g 1.0 = scale to fit, 0.9
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= scale to fit leaving a border etc.). [op] is unused. *)
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val scale_to_fit_pdf : ?fast:bool -> Cpdfposition.position -> float -> (float * float) list -> 'a -> Pdf.t -> int list -> Pdf.t
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(** Scale the contents of a page by a given factor centred around a given point in a given range. *)
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val scale_contents : ?fast:bool -> Cpdfposition.position -> float -> Pdf.t -> int list -> Pdf.t
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val trim_marks : ?fast:bool -> Pdf.t -> int list -> Pdf.t
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val show_boxes : ?fast:bool -> Pdf.t -> int list -> Pdf.t
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(** {2 Annotations} *)
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(** List the annotations to standard output in a given encoding. See cpdfmanual.pdf for the format details. *)
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val list_annotations : json:bool -> Cpdfmetadata.encoding -> Pdf.t -> unit
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(** Return the annotations as a (pagenumber, content) list *)
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val get_annotations : Cpdfmetadata.encoding -> Pdf.t -> (int * string) list
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(** Copy the annotations on a given set of pages from a to b. b is returned. *)
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val copy_annotations : int list -> Pdf.t -> Pdf.t -> Pdf.t
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(** Remove the annotations on given pages. *)
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val remove_annotations : int list -> Pdf.t -> Pdf.t
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(** {2 Imposition} *)
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val impose : x:float -> y:float -> fit:bool -> columns:bool -> rtl:bool -> btt:bool -> center:bool -> margin:float -> spacing:float -> linewidth:float -> fast:bool -> Pdf.t -> Pdf.t
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(** The twoup_stack operation puts two logical pages on each physical page,
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rotating them 90 degrees to do so. The new mediabox is thus larger. Bool true
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(fast) if assume well-formed ISO content streams. *)
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val twoup_stack : bool -> Pdf.t -> Pdf.t
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(** The twoup operation does the same, but scales the new sides down so that
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the media box is unchanged. Bool true (fast) if assume well-formed ISO content streams. *)
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val twoup : bool -> Pdf.t -> Pdf.t
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(** {2 Miscellany} *)
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(** Make all lines in the PDF at least a certain thickness. *)
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val thinlines : int list -> float -> Pdf.t -> Pdf.t
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(** Make all text on certain pages black. *)
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val blacktext : color -> int list -> Pdf.t -> Pdf.t
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(** Make all lines on certain pages black. *)
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val blacklines : color -> int list -> Pdf.t -> Pdf.t
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(** Make all fills on certain pages black. *)
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val blackfills : color -> int list -> Pdf.t -> Pdf.t
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(** Remove images from a PDF, optionally adding crossed boxes. *)
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val draft : string option -> bool -> int list -> Pdf.t -> Pdf.t
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val remove_all_text : int list -> Pdf.t -> Pdf.t
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(**/**)
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val process_xobjects : Pdf.t -> Pdfpage.t -> (Pdf.t -> Pdf.pdfobject -> Pdf.pdfobject list -> Pdf.pdfobject list) -> unit
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val debug : bool ref
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val extract_text : float option -> Pdf.t -> int list -> string
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val append_page_content : string -> bool -> bool -> int list -> Pdf.t -> Pdf.t
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val stamp_as_xobject : Pdf.t -> int list -> Pdf.t -> Pdf.t * string
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val remove_dict_entry : Pdf.t -> string -> Pdf.pdfobject option -> unit
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val replace_dict_entry : Pdf.t -> string -> Pdf.pdfobject -> Pdf.pdfobject option -> unit
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val print_dict_entry : Pdf.t -> string -> unit
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val remove_clipping : Pdf.t -> int list -> Pdf.t
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val image_resolution : Pdf.t -> int list -> float -> (int * string * int * int * float * float) list
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val copy_box : string -> string -> bool -> Pdf.t -> int list -> Pdf.t
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val add_bookmark_title : string -> bool -> Pdf.t -> Pdf.t
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val remove_unused_resources : Pdf.t -> Pdf.t
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val bookmarks_open_to_level : int -> Pdf.t -> Pdf.t
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val create_pdf : int -> Pdfpaper.t -> Pdf.t
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val name_of_spec : Cpdfmetadata.encoding ->
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Pdfmarks.t list ->
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Pdf.t -> int -> string -> int -> string -> int -> int -> string
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val extract_images : string ->
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string ->
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Cpdfmetadata.encoding -> bool -> bool -> Pdf.t -> int list -> string -> unit
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