Install TCPDF from composer

composer.json

composer.lock

dev/dolibarr_changes.txt

dev/test/testtcpdf.php

dev/test/testutf.php

htdocs/filefunc.inc.php

htdocs/includes/composer/autoload_classmap.php

htdocs/includes/composer/installed.json

htdocs/includes/tcpdf/include/sRGB.icc

htdocs/includes/tcpdi/tcpdi_parser.php

htdocs/includes/tecnick.com/tcpdf/CHANGELOG.TXT

htdocs/includes/tecnick.com/tcpdf/LICENSE.TXT

htdocs/includes/tecnick.com/tcpdf/README.TXT

htdocs/includes/tecnick.com/tcpdf/composer.json

htdocs/includes/tecnick.com/tcpdf/config/tcpdf_config.php

...s/tecnick.com/tcpdf/examples/barcodes/example_1d_html.php

...es/tecnick.com/tcpdf/examples/barcodes/example_1d_png.php

...es/tecnick.com/tcpdf/examples/barcodes/example_1d_svg.php

...s/tecnick.com/tcpdf/examples/barcodes/example_1d_svgi.php

...om/tcpdf/examples/barcodes/example_2d_datamatrix_html.php