/usr/share/doc/php-tcpdf/examples/barcodes/ is in php-tcpdf 6.0.048+dfsg-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/php-tcpdf/examples/barcodes/example_1d_html.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_1d_png.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_1d_svg.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_1d_svgi.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_2d_datamatrix_html.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_2d_datamatrix_png.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_2d_datamatrix_svg.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_2d_datamatrix_svgi.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_2d_pdf417_html.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_2d_pdf417_png.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_2d_pdf417_svg.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_2d_pdf417_svgi.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_2d_qrcode_html.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_2d_qrcode_png.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_2d_qrcode_svg.php
/usr/share/doc/php-tcpdf/examples/barcodes/example_2d_qrcode_svgi.php
/usr/share/doc/php-tcpdf/examples/barcodes/tcpdf_barcodes_1d_include.php
/usr/share/doc/php-tcpdf/examples/barcodes/tcpdf_barcodes_2d_include.php