NAME

PDF::Builder::Resource::XObject::Image::TIFF - TIFF image support

Inherits from PDF::Builder::Resource::XObject::Image

METHODS

new

    $res = PDF::Builder::Resource::XObject::Image::TIFF->new($pdf, $file, %opts)

Returns a TIFF-image object.

If the Graphics::TIFF package is installed, the TIFF_GT library will be used instead of the TIFF library. In such a case, use of the TIFF library may be forced via the nouseGT flag (see Builder documentation for image_tiff()).

Options:

'name' => 'string': This is the name you can give for the TIFF image object. The default is Ixnnnn.

Remember that you need to use the Builder.pm method image_tiff in order to display a TIFF file.

usesLib

    $mode = $tif->usesLib()

Returns 1 if Graphics::TIFF installed and used, 0 if not installed, or -1 if installed but not used (nouseGT option given to image_tiff).

Caution: this method can only be used after the image object has been created. It can't tell you whether Graphics::TIFF is available in advance of actually using it, in case you want to use some functionality available only in TIFF_GT. See the <PDF::Builder> LA_GT() call if you need to know in advance.

tiffTag

    $value = $tif->tiffTag($tag)

returns the value of the internal tiff-tag.

Useful Tags:

    imageDescription, imageId (strings)
    xRes, yRes (dpi; pixel/cm if resUnit==3)
    resUnit

Up (Parents)

Master Index
PDF::Builder -- Facilitates the creation and modification of PDF files
PDF::Builder::Resource -- Base class for PDF resources
PDF::Builder::Resource::XObject -- Base class for external objects
PDF::Builder::Resource::XObject::Image -- Base class for external raster image objects

Siblings

PDF::Builder::Resource::XObject::Image::GD -- Support routines for Graphics Development image library
PDF::Builder::Resource::XObject::Image::GIF -- Support routines for GIF image library
PDF::Builder::Resource::XObject::Image::JPEG -- Support routines for JPEG image library
PDF::Builder::Resource::XObject::Image::PNG -- Support routines for PNG image library (using pure Perl code)
PDF::Builder::Resource::XObject::Image::PNG_IPL -- Support routines for PNG image library (using Image::PNG::Libpng)
PDF::Builder::Resource::XObject::Image::PNM -- Support routines for PNM (Portable aNy Map) image library
PDF::Builder::Resource::XObject::Image::TIFF_GT -- TIFF image support (Graphics::TIFF enabled)

Down (Children)

PDF::Builder::Resource::XObject::Image::TIFF::File -- Support routines for TIFF image library
PDF::Builder::Resource::XObject::Image::TIFF::File_GT -- Support routines for TIFF image library (Graphics::TIFF enabled)

A Thought…