PDF Fieldtype/Inputfield

Module for ProcessWire allowing you to easily generate thumbnails of the PDF files embedded to the site.

Requirements

• Processwire 2.4
• ImageMagick PHP extension
• Ghostscript

Installation

Place the files in /site/modules/FieldtypePDF and install the FieldtypePDF module.
How to install or uninstall modules.

How to use

In site's administration

Add a field and set its type to PDF. Use the field the same way as the file field (obviously, this accepts only *.pdf files). After the file is uploaded you will see a small thumbnail of it.

In templates

The PDF field type extends file field and adds new method to generate the thumbnail image of the PDF with the size of width x height in pixels.

$page->pdfFile->thumbnail(width, height)

If you set one of the dimensions to 0 it will be computed automaticaly preserving the aspect ratio.

The generated image is saved in page's assets, so it will be created only once. The thumbnail is the instance of PageImage, so you can do with it whatever you can do with image fields. When you delete the PDF file the thumbnails are deleted too.

Notes

In some cases, the thumbnail's colors might not match the colors in PDF. To fix that, you need to made some changes in ImageMagick delegate files.

Detailed instructions can be found here: http://www.lassosoft.com/CMYK-Colour-Matching-with-ImageMagick

Changelog

1.0.1

• Set important ImageMagick settings before conversion [issue #1]
• Added module requirements check [issue #2]
• Updated README