Import Multipage Files plugin

Import Multipage Files plugin is required when running a batch on multipage images. This plugin breaks the multipage .pdf and .tiff files into multiple single page .tiff files.

Multipage .pdf files are converted to single page .tiff files using Ghostscript/OmniPage.

Multipage .tiff files are converted to single page .tiff files using ImageMagick/GraphicMagick.

Configuration

Image conversion properties can be edited through Transact.

Configurable property	Type of value	Value options	Description
IM Convert Input Image Parameters	String	N/A	Input parameters for ImageMagick image conversion process that should be used for multipage .tiff to multiple single page .tiff files conversion.
Multi Page Import	List of values	YES NO	Switch for multipage files import plugin. If set to NO, multipage files (.pdf and .tiff) are not converted to multiple single page .tiff files.
IM Convert Output Image Parameters	String	N/A	Output parameters for ImageMagick image conversion process that should be used for multipage .tiff to multiple single page .tiff files conversion.
Ghostscript Image Parameters	String	N/A	Parameters for Ghostscript command that should be used for multipage .pdf to multiple single page .tiff files conversion.
PDF To TIFF Conversion Process	List of values	Ghostscript OmniPage Recostar (Deprecated) When you select the Recostar (Deprecated) option, a red warning message appears: "Recostar is obsolete in this release. Its settings are automatically mapped to another engine’s settings during runtime for OCR or PDF conversion. Consider using OmniPage instead."	.pdf to .tiff conversion process
RecoStar Compression Ratio	List of values	10 20 30 40 50 60 70	Compression ratio while converting .pdf to .tiff through OmniPage
Image Conversion Process	List of values	IMAGE_MAGICK GRAPHIC_MAGICK	Multipage .tiff image conversion process. Default value is IMAGE_MAGICK.
GM Convert Output Image Parameters	String	N/A	Output parameters for GraphicMagick image conversion process that should be used for multipage .tiff to multiple single page .tiff files conversion.
GM Convert Input Image Parameters	String	N/A	Input parameters for GraphicMagick image conversion process that should be used for multipage .tiff to multiple single page .tiff files conversion.
Optimized Tiff Conversion Switch	List of values	ON OFF	If the switch is configured, the conversion and breaking into multipage single .tiff files is done irrespective of the size of the imported images via another utility - libtiff. It increases the overall processing time and reduces the size of the converted images (approximately similar to the input .tiff file).

Property file configuration

Property file location: <Transact Installation Directory>/Application/WEB-INF/classes/META-INF/dcma-import-folder/dcma-import-folder.properties*

Configurable property	Type of value	Value options	Description
import.folder_ignore_char_list	String	N/A	Semicolon separated characters that are to be replaced in the file names encountered by the plugin.
import.ignore_replace_char	String	N/A	Character specified here that will replace the characters mentioned in import.folder_ignore_char_list for the file names encountered by the plugin.

Optimization parameters and results

-sDEVICE parameter

-sDEVICE=tiff12nc: Produces 12-bit RGB output.
-sDEVICE=tiff24nc: Produces 24-bit RGB output.
-sDEVICE=tiff48nc: Produces 48-bit RGB output.
-sDEVICE=tiff32nc: Produces 32-bit CMYK output
-sDEVICE=tiff64nc: Produces 64-bit CMYK output.
-sDEVICE=tiffscaled24 -sCompression=lzw: Produces a 24-bit RGB image and allows the use of a special compression tag along with it which allows us to compress the size of the image.
-sDEVICE=tifflzw: Produces black-and-white output and can be combined with various compression options.

Following are the results of images produced by splitting a PDF with the given specifications under different GhostScript parameters:

PDF Size: 514 KB
Number of pages in PDF: 26

PDF contains mixture of color and B/W images.

-sDEVICE	Type of output	Size per image produced(in KB)	Total images size (in MB)
tiff12nc	Same type of images	12,241	325
tiff24nc	Same type of images	25,446	626
tiff48nc	Same type of images	51,148	1258
tiffscaled24 -sCompression=lzw	Same type of images	250-400	6.75
tifflzw	All images converted to B/W	50-90	1.4

Troubleshooting

If a malfunction occurs with the image conversion process, the following errors may appear.

Error message	Possible root cause
Invalid property file configuration	The following properties in the <Transact Installation Directory>/Application/WEB-INF/classes/META-INF/dcma-import-folder/dcma-import-folder.properties file are empty: import.folder_ignore_char_list import.ignore_replace_char
Converted .tiff files count not equal to the .tiff pages count.	The number of pages in .pdf/multipage .tiff is not equal to the converted .tiff files. The issue may be related to OmniPage’s conversion process. Verify the configuration settings for the OmniPage plugin.

Error message

Possible root cause

Invalid property file configuration

The following properties in the <Transact Installation Directory>/Application/WEB-INF/classes/META-INF/dcma-import-folder/dcma-import-folder.properties file are empty:

import.folder_ignore_char_list
import.ignore_replace_char

Converted .tiff files count not equal to the .tiff pages count.

The number of pages in .pdf/multipage .tiff is not equal to the converted .tiff files.

The issue may be related to OmniPage’s conversion process. Verify the configuration settings for the OmniPage plugin.