Module Pdfops

module Pdfops: sig .. end

Parsing PDF Graphics Streams

type t =

`\|`	`Op_w of float`
`\|`	`Op_J of int`
`\|`	`Op_j of int`
`\|`	`Op_M of float`
`\|`	`Op_d of float list * float`
`\|`	`Op_ri of string`
`\|`	`Op_i of int`
`\|`	`Op_gs of string`
`\|`	`Op_q`
`\|`	`Op_Q`
`\|`	`Op_cm of Pdftransform.transform_matrix`
`\|`	`Op_m of float * float`
`\|`	`Op_l of float * float`
`\|`	`Op_c of float * float * float * float * float * float`
`\|`	`Op_v of float * float * float * float`
`\|`	`Op_y of float * float * float * float`
`\|`	`Op_h`
`\|`	`Op_re of float * float * float * float`
`\|`	`Op_S`
`\|`	`Op_s`
`\|`	`Op_f`
`\|`	`Op_F`
`\|`	`Op_f'`
`\|`	`Op_B`
`\|`	`Op_B'`
`\|`	`Op_b`
`\|`	`Op_b'`
`\|`	`Op_n`
`\|`	`Op_W`
`\|`	`Op_W'`
`\|`	`Op_BT`
`\|`	`Op_ET`
`\|`	`Op_Tc of float`
`\|`	`Op_Tw of float`
`\|`	`Op_Tz of float`
`\|`	`Op_TL of float`
`\|`	`Op_Tf of string * float`
`\|`	`Op_Tr of int`
`\|`	`Op_Ts of float`
`\|`	`Op_Td of float * float`
`\|`	`Op_TD of float * float`
`\|`	`Op_Tm of Pdftransform.transform_matrix`
`\|`	`Op_T'`
`\|`	`Op_Tj of string`
`\|`	`Op_TJ of Pdf.pdfobject`
`\|`	`Op_' of string`
`\|`	`Op_'' of float * float * string`
`\|`	`Op_d0 of float * float`
`\|`	`Op_d1 of float * float * float * float * float * float`
`\|`	`Op_CS of string`
`\|`	`Op_cs of string`
`\|`	`Op_SC of float list`
`\|`	`Op_sc of float list`
`\|`	`Op_SCN of float list`
`\|`	`Op_scn of float list`
`\|`	`Op_SCNName of string * float list`
`\|`	`Op_scnName of string * float list`
`\|`	`Op_G of float`
`\|`	`Op_g of float`
`\|`	`Op_RG of float * float * float`
`\|`	`Op_rg of float * float * float`
`\|`	`Op_K of float * float * float * float`
`\|`	`Op_k of float * float * float * float`
`\|`	`Op_sh of string`
`\|`	`InlineImage of (Pdf.pdfobject * Pdf.pdfobject option * Pdfio.bytes)`
`\|`	`Op_Do of string`
`\|`	`Op_MP of string`
`\|`	`Op_DP of string * Pdf.pdfobject`
`\|`	`Op_BMC of string`
`\|`	`Op_BDC of string * Pdf.pdfobject`
`\|`	`Op_EMC`
`\|`	`Op_BX`
`\|`	`Op_EX`
`\|`	`Op_Unknown of string`
`\|`	`Op_Comment of string`

A flat representation of the PDF graphics stream operators. Where the operator contains the asterisk character (not allowable in OCaml syntax), a prime is substituted.

val parse_single_stream : Pdf.t -> Pdf.pdfobject -> Pdfio.bytes -> t list

Parse a single byte streams to an operator list given a document and resource dictionary.

val parse_stream : Pdf.t -> Pdf.pdfobject -> Pdfio.bytes list -> t list

Parse a list of byte streams to an operator list given a document and resource dictionary.

val concat_bytess : Pdfio.bytes list -> Pdfio.bytes

Concatenate a list of bytes, padding with whitespace between.

val parse_operators : Pdf.t -> Pdf.pdfobject -> Pdf.pdfobject list -> t list

Given a pdf document, resource dictionary and list of streams representing the graphics content (PDF allows a single page's graphics content to be split over several streams), return a list of operators. Raises PDFError on bad content.

val stream_of_ops : t list -> Pdf.pdfobject

Flatten a list of operators to an uncompressed PDF stream.

val string_of_op : t -> string

Make a string of a single operator (for debug purposes).

val string_of_ops : t list -> string

Same as string_of_op, but of several operators (for debug purposes).

val components : Pdf.t -> Pdf.pdfobject -> Pdf.pdfobject -> int

Given a pdf, a resources dictionary and a colourspace dictionary, give the number of bytes per pixel in the stored image data.

val debug : bool Stdlib.ref

When this reference is set, some debug information is printed to Standard Output.

val whitespace : string Stdlib.ref

Whitespace between operators

val always_add_whitespace : bool Stdlib.ref

Add whitespace even where not lexically-required.

val write_comments : bool Stdlib.ref

If set, comments will be written.