YuPdf is a PDF document creation library for Delphi (Embarcadero, CodeGear, Borland versions). It includes the following functionality:

Create PDF documents containing text, graphics, and bitmap images.
Easily add outlines, annotations, and document attachments.
Embed JPEG and PNG images, preserving transparency.
Embed Type 1 and TrueType fonts.
Document and image compression and encryption.
Character set and encoding support (1- and 2-byte UTF-8, ISO 8859-2 to 8859-16, Windows 1250 to 1258, KOI8-R).
CJK fonts and encodings for Chinese and Japanese text.
Object wrapper classes for simplified coding.
Extensive number of demo projects to get started.
No dependencies, does not require DLLs or external files.

DIUnicode provides Unicode Reader and Unicode Writer classes for Delphi (Embarcadero / CodeGear / Borland). The classes implement automatic and native decoding and / or encoding of 150+ character sets when linked against DIConverters. DIUnicode's Pascal implementation features more than 70 encodings, like UTF-7, UTF-8, UTF-16, the ISO-8859 family, various Windows and Macintosh codepages, KOI8 character sets, Chinese GB18030, and more. Adding a new character coding is as simple as writing a single conversion procedure.

This code is part of 2 dimentional code family, it's in fact a code with several rows which can encode up to 2700 bytes what explain its name of "Portable Document File". The encoding is done in two stages : first the datas are converted to "codeword" (High level encoding) then those are converted to bars and spaces patterns. (Low level encoding) Moreover an error correction system with several levels is included, it allows to reconstitute badly printed, erased, fuzzy or torn off datas. In the continuation of this talk, the word "codeword" will be shortened into CW.

full JSON supported: literals, numbers, strings, arrays and objects
date/time encoding and decoding supported
customizable output
supports Windows 32, Windows 64, macOS, iOS and Android
available for Delphi/C++ Builder 6 - 10.1 and Lazarus 1.6
source code included in full version
royalty free distribution in applications

Products
POP3 / SMTP - Feature List
Zip, GZip, Bz2, .Z Compression - Feature List
Data Compression - Feature List
TAR Archive - Feature List
FTP2 - Feature List
IMAP - Feature List
Encryption - Feature List
RSA Encryption and Signatures - Feature List
DSA (DSS) Signatures - Feature List
Diffie-Hellman (DH) Key Exchange - Feature List
HTTP - Feature List
Socket / SSL - Feature List
SSH / SFTP - Feature List
MIME + S/MIME - Feature List
MHT - Feature List
HTML-to-XML Conversion - Feature List
Charset Encoding Conversion - Feature List
Email Bounce Processing - Feature List
XMP - Feature List

Products
POP3 / SMTP - Feature List
Zip, GZip, Bz2, .Z Compression - Feature List
Data Compression - Feature List
TAR Archive - Feature List
FTP2 - Feature List
IMAP - Feature List
Encryption - Feature List
RSA Encryption and Signatures - Feature List
DSA (DSS) Signatures - Feature List
Diffie-Hellman (DH) Key Exchange - Feature List
HTTP - Feature List
Socket / SSL - Feature List
SSH / SFTP - Feature List
MIME + S/MIME - Feature List
MHT - Feature List
HTML-to-XML Conversion - Feature List
Charset Encoding Conversion - Feature List
Email Bounce Processing - Feature List
XMP - Feature List

DIUnicode provides Unicode Reader and Unicode Writer classes for Delphi (Embarcadero / CodeGear / Borland). The classes implement automatic and native decoding and / or encoding of 150+ character sets when linked against DIConverters. DIUnicode's Pascal implementation features more than 70 encodings, like UTF-7, UTF-8, UTF-16, the ISO-8859 family, various Windows and Macintosh codepages, KOI8 character sets, Chinese GB18030, and more. Adding a new character coding is as simple as writing a single conversion procedure.

Products
POP3 / SMTP - Feature List
Zip, GZip, Bz2, .Z Compression - Feature List
Data Compression - Feature List
TAR Archive - Feature List
FTP2 - Feature List
IMAP - Feature List
Encryption - Feature List
RSA Encryption and Signatures - Feature List
DSA (DSS) Signatures - Feature List
Diffie-Hellman (DH) Key Exchange - Feature List
HTTP - Feature List
Socket / SSL - Feature List
SSH / SFTP - Feature List
MIME + S/MIME - Feature List
MHT - Feature List
HTML-to-XML Conversion - Feature List
Charset Encoding Conversion - Feature List
Email Bounce Processing - Feature List
XMP - Feature List