-
Notifications
You must be signed in to change notification settings - Fork 551
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Enable PDFDocEncoding support for metadata (#611)
* Enable PDFDocEncoding support Regular PDF metadata (outside of XMP), depending on the characters it includes, can be encoded in UTF-8 escaped (or binary) bytes, or using a proprietary Adobe encoding PDFDocEncoding which is similar to, but not exactly like CP1252. For more information on the PDFDocEncoding character set, see: https://ia801001.us.archive.org/1/items/pdf1.7/pdf_reference_1-7.pdf Another issue is that regardless of the storage encoding used, Adobe Acrobat will attempt to add a slash-linefeed (\r) to metadata text to avoid long line-lengths (~127 bytes) in the saved PDF data. Unfortunately, the method to do this does not seem binary-safe, resulting in UTF-8 saved bytes that are destroyed and must be repaired. This commit enables decoding PDF metadata using PDFDocEncoding, and also repairs added line-feeds in both PDFDocEncoding and UTF-8. It also adds a sample file "Issue609.pdf" containing both UTF-8 and PDFDocEncoding encoded metadata fields for testing. The name of the file references PDFParser issue #609: #609 * Update PDFDocEncoding.php I hope I am not assuming too much by adding myself as the author of this file! * PR #611 suggested changes Add comments in Document.php Use plain class PDFDocEncoding, do not extend AbstractEncoding array() => [] Break up class functions into one that returns the code table, and another that uses the table to perform the conversion * fixed coding style issues in Document.php * fixed coding style issue in PDFDocEncoding.php --------- Co-authored-by: Konrad Abicht <[email protected]>
- Loading branch information
1 parent
66ddf47
commit d03ef96
Showing
4 changed files
with
259 additions
and
0 deletions.
There are no files selected for viewing
Binary file not shown.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,189 @@ | ||
| <?php | ||
|
|
||
| /** | ||
| * @file This file is part of the PdfParser library. | ||
| * | ||
| * @author Brian Huisman <[email protected]> | ||
| * | ||
| * @date 2023-06-28 | ||
| * | ||
| * @license LGPLv3 | ||
| * | ||
| * @url <https://github.com/smalot/pdfparser> | ||
| * | ||
| * PdfParser is a pdf library written in PHP, extraction oriented. | ||
| * Copyright (C) 2017 - Sébastien MALOT <[email protected]> | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU Lesser General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public License | ||
| * along with this program. | ||
| * If not, see <http://www.pdfparser.org/sites/default/LICENSE.txt>. | ||
| */ | ||
|
|
||
| // Source : https://opensource.adobe.com/dc-acrobat-sdk-docs/pdfstandards/pdfreference1.2.pdf | ||
| // Source : https://ia801001.us.archive.org/1/items/pdf1.7/pdf_reference_1-7.pdf | ||
|
|
||
| namespace Smalot\PdfParser\Encoding; | ||
|
|
||
| /** | ||
| * Class PDFDocEncoding | ||
| */ | ||
| class PDFDocEncoding | ||
| { | ||
| public static function getCodePage(): array | ||
| { | ||
| return [ | ||
| "\x18" => "\u{02d8}", // breve | ||
| "\x19" => "\u{02c7}", // caron | ||
| "\x1a" => "\u{02c6}", // circumflex | ||
| "\x1b" => "\u{02d9}", // dotaccent | ||
| "\x1c" => "\u{02dd}", // hungarumlaut | ||
| "\x1d" => "\u{02db}", // ogonek | ||
| "\x1e" => "\u{02de}", // ring | ||
| "\x1f" => "\u{02dc}", // tilde | ||
| "\x7f" => '', | ||
| "\x80" => "\u{2022}", // bullet | ||
| "\x81" => "\u{2020}", // dagger | ||
| "\x82" => "\u{2021}", // daggerdbl | ||
| "\x83" => "\u{2026}", // ellipsis | ||
| "\x84" => "\u{2014}", // emdash | ||
| "\x85" => "\u{2013}", // endash | ||
| "\x86" => "\u{0192}", // florin | ||
| "\x87" => "\u{2044}", // fraction | ||
| "\x88" => "\u{2039}", // guilsinglleft | ||
| "\x89" => "\u{203a}", // guilsinglright | ||
| "\x8a" => "\u{2212}", // minus | ||
| "\x8b" => "\u{2030}", // perthousand | ||
| "\x8c" => "\u{201e}", // quotedblbase | ||
| "\x8d" => "\u{201c}", // quotedblleft | ||
| "\x8e" => "\u{201d}", // quotedblright | ||
| "\x8f" => "\u{2018}", // quoteleft | ||
| "\x90" => "\u{2019}", // quoteright | ||
| "\x91" => "\u{201a}", // quotesinglbase | ||
| "\x92" => "\u{2122}", // trademark | ||
| "\x93" => "\u{fb01}", // fi | ||
| "\x94" => "\u{fb02}", // fl | ||
| "\x95" => "\u{0141}", // Lslash | ||
| "\x96" => "\u{0152}", // OE | ||
| "\x97" => "\u{0160}", // Scaron | ||
| "\x98" => "\u{0178}", // Ydieresis | ||
| "\x99" => "\u{017d}", // Zcaron | ||
| "\x9a" => "\u{0131}", // dotlessi | ||
| "\x9b" => "\u{0142}", // lslash | ||
| "\x9c" => "\u{0153}", // oe | ||
| "\x9d" => "\u{0161}", // scaron | ||
| "\x9e" => "\u{017e}", // zcaron | ||
| "\x9f" => '', | ||
| "\xa0" => "\u{20ac}", // Euro | ||
| "\xa1" => "\u{00a1}", // exclamdown | ||
| "\xa2" => "\u{00a2}", // cent | ||
| "\xa3" => "\u{00a3}", // sterling | ||
| "\xa4" => "\u{00a4}", // currency | ||
| "\xa5" => "\u{00a5}", // yen | ||
| "\xa6" => "\u{00a6}", // brokenbar | ||
| "\xa7" => "\u{00a7}", // section | ||
| "\xa8" => "\u{00a8}", // dieresis | ||
| "\xa9" => "\u{00a9}", // copyright | ||
| "\xaa" => "\u{00aa}", // ordfeminine | ||
| "\xab" => "\u{00ab}", // guillemotleft | ||
| "\xac" => "\u{00ac}", // logicalnot | ||
| "\xad" => '', | ||
| "\xae" => "\u{00ae}", // registered | ||
| "\xaf" => "\u{00af}", // macron | ||
| "\xb0" => "\u{00b0}", // degree | ||
| "\xb1" => "\u{00b1}", // plusminus | ||
| "\xb2" => "\u{00b2}", // twosuperior | ||
| "\xb3" => "\u{00b3}", // threesuperior | ||
| "\xb4" => "\u{00b4}", // acute | ||
| "\xb5" => "\u{00b5}", // mu | ||
| "\xb6" => "\u{00b6}", // paragraph | ||
| "\xb7" => "\u{00b7}", // periodcentered | ||
| "\xb8" => "\u{00b8}", // cedilla | ||
| "\xb9" => "\u{00b9}", // onesuperior | ||
| "\xba" => "\u{00ba}", // ordmasculine | ||
| "\xbb" => "\u{00bb}", // guillemotright | ||
| "\xbc" => "\u{00bc}", // onequarter | ||
| "\xbd" => "\u{00bd}", // onehalf | ||
| "\xbe" => "\u{00be}", // threequarters | ||
| "\xbf" => "\u{00bf}", // questiondown | ||
| "\xc0" => "\u{00c0}", // Agrave | ||
| "\xc1" => "\u{00c1}", // Aacute | ||
| "\xc2" => "\u{00c2}", // Acircumflex | ||
| "\xc3" => "\u{00c3}", // Atilde | ||
| "\xc4" => "\u{00c4}", // Adieresis | ||
| "\xc5" => "\u{00c5}", // Aring | ||
| "\xc6" => "\u{00c6}", // AE | ||
| "\xc7" => "\u{00c7}", // Ccedill | ||
| "\xc8" => "\u{00c8}", // Egrave | ||
| "\xc9" => "\u{00c9}", // Eacute | ||
| "\xca" => "\u{00ca}", // Ecircumflex | ||
| "\xcb" => "\u{00cb}", // Edieresis | ||
| "\xcc" => "\u{00cc}", // Igrave | ||
| "\xcd" => "\u{00cd}", // Iacute | ||
| "\xce" => "\u{00ce}", // Icircumflex | ||
| "\xcf" => "\u{00cf}", // Idieresis | ||
| "\xd0" => "\u{00d0}", // Eth | ||
| "\xd1" => "\u{00d1}", // Ntilde | ||
| "\xd2" => "\u{00d2}", // Ograve | ||
| "\xd3" => "\u{00d3}", // Oacute | ||
| "\xd4" => "\u{00d4}", // Ocircumflex | ||
| "\xd5" => "\u{00d5}", // Otilde | ||
| "\xd6" => "\u{00d6}", // Odieresis | ||
| "\xd7" => "\u{00d7}", // multiply | ||
| "\xd8" => "\u{00d8}", // Oslash | ||
| "\xd9" => "\u{00d9}", // Ugrave | ||
| "\xda" => "\u{00da}", // Uacute | ||
| "\xdb" => "\u{00db}", // Ucircumflex | ||
| "\xdc" => "\u{00dc}", // Udieresis | ||
| "\xdd" => "\u{00dd}", // Yacute | ||
| "\xde" => "\u{00de}", // Thorn | ||
| "\xdf" => "\u{00df}", // germandbls | ||
| "\xe0" => "\u{00e0}", // agrave | ||
| "\xe1" => "\u{00e1}", // aacute | ||
| "\xe2" => "\u{00e2}", // acircumflex | ||
| "\xe3" => "\u{00e3}", // atilde | ||
| "\xe4" => "\u{00e4}", // adieresis | ||
| "\xe5" => "\u{00e5}", // aring | ||
| "\xe6" => "\u{00e6}", // ae | ||
| "\xe7" => "\u{00e7}", // ccedilla | ||
| "\xe8" => "\u{00e8}", // egrave | ||
| "\xe9" => "\u{00e9}", // eacute | ||
| "\xea" => "\u{00ea}", // ecircumflex | ||
| "\xeb" => "\u{00eb}", // edieresis | ||
| "\xec" => "\u{00ec}", // igrave | ||
| "\xed" => "\u{00ed}", // iacute | ||
| "\xee" => "\u{00ee}", // icircumflex | ||
| "\xef" => "\u{00ef}", // idieresis | ||
| "\xf0" => "\u{00f0}", // eth | ||
| "\xf1" => "\u{00f1}", // ntilde | ||
| "\xf2" => "\u{00f2}", // ograve | ||
| "\xf3" => "\u{00f3}", // oacute | ||
| "\xf4" => "\u{00f4}", // ocircumflex | ||
| "\xf5" => "\u{00f5}", // otilde | ||
| "\xf6" => "\u{00f6}", // odieresis | ||
| "\xf7" => "\u{00f7}", // divide | ||
| "\xf8" => "\u{00f8}", // oslash | ||
| "\xf9" => "\u{00f9}", // ugrave | ||
| "\xfa" => "\u{00fa}", // uacute | ||
| "\xfb" => "\u{00fb}", // ucircumflex | ||
| "\xfc" => "\u{00fc}", // udieresis | ||
| "\xfd" => "\u{00fd}", // yacute | ||
| "\xfe" => "\u{00fe}", // thorn | ||
| "\xff" => "\u{00ff}", // ydieresis | ||
| ]; | ||
| } | ||
|
|
||
| public static function convertPDFDoc2UTF8(string $content): string | ||
| { | ||
| return strtr($content, static::getCodePage()); | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters