package camlpdf

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Read, write and modify PDF files

Install

Dune Dependency

github.com Edit opam file Versions (11)

Authors

J

John Whitington

Maintainers

C

contact@coherentgraphics.co.uk

Sources

v2.7.1.tar.gz

md5=5ec4c14006769e68be97a3ed70d46bc7

sha512=2480a282a6ce09444ed14a3f41561375ecf7e3c57f7559a48ad9791d9f824e59820bfd39aa36910ff6bdc9b160cef76ab90dbbfe628c836c3f5c5081dfd5e452

doc/camlpdf/Pdfcrypt/index.html

Module `Pdfcrypt`

Decrypting PDF files

Note that encryption depends on fixed object and generation numbers: don't change these (for example by calling Pdf.remove_unreferenced on the PDF) before writing.

Encryption support is part of the Pdfwrite module, since files are encrypted when they're written.

val crypt_debug : bool Stdlib.ref

If this is set, various debug is produced on standard output. On startup, is set to false

type permission =

| NoEdit
| NoPrint
| NoCopy
| NoAnnot
| NoForms
| NoExtract
| NoAssemble
| NoHqPrint

val decrypt_pdf : 
  ?keyfromowner:string ->
  string ->
  Pdf.t ->
  Pdf.t option * permission list

Decrypt a PDF document, given the user password, returning the permissions under which the document was encrypted.

val decrypt_pdf_owner : string -> Pdf.t -> Pdf.t option

Decrypt a PDF document, given the owner password.

val is_encrypted : Pdf.t -> bool

Is a PDF encrypted?

val recrypt_pdf : ?renumber:bool -> Pdf.t -> string -> Pdf.t

recrypt_pdf decrypted_and_modified re-encrypts a PDF document which was decrypted using the user password and owner password from the original encrypted file and the same permissions and encryption parameters.

val encrypt_pdf_40bit : string -> string -> permission list -> Pdf.t -> Pdf.t

Encrypt a PDF documnent, using 40 bit encryption, with given user and owner passwords.

val encrypt_pdf_128bit : string -> string -> permission list -> Pdf.t -> Pdf.t

Ditto for 128 bit encryption

val encrypt_pdf_AES : 
  bool ->
  string ->
  string ->
  permission list ->
  Pdf.t ->
  Pdf.t

Encrypt a file using the AESV2 Crypt filter

val encrypt_pdf_AES256 : 
  bool ->
  string ->
  string ->
  permission list ->
  Pdf.t ->
  Pdf.t

Encrypt a file using the AESV3 Crypt filter

val encrypt_pdf_AES256ISO : 
  bool ->
  string ->
  string ->
  permission list ->
  Pdf.t ->
  Pdf.t

Encrypt a file using the AESV4 (ISO) Crypt filter