ABCpdf uses the temp directory.

You can override the location it uses by setting this value.

By setting this value to 1 you can ensure full compatibility with ABCpdf version 3 layout algorithms.

By setting this value to 1 you can ensure full compatibility with ABCpdf version 4 layout algorithms.

By setting this value to 1 you can ensure full compatibility with ABCpdf version 5 layout algorithms.

ABCpdf compresses black and white images using CCITT compression.

You can disable this type of compression if you wish to produce simple flate compressed images.

When you insert JPEGs using the Image object they bypass the normal rendering process and are inserted direct. This can result in a considerable reduction in file size without any loss of visual quality.

However the final output may vary slightly from that produced by older versions of ABCpdf.

By setting this value to 0 you can ensure compatibility.

HTML rendering sometimes requires two stages - an information gathering stage and a render stage.

For backwards compatibility reasons you can insert a delay between these two stages. This value is measured in milliseconds.

Certain HTML temp files are automatically deleted by ABCpdf after use.

You are unlikely to want to change the value of this key.

Determines whether errors will be logged in the Application Event Log.

Whether ABCpdf should automatically attempt to recover from serious errors.

This is generally set to false. Recovery may work in some situations but in others it will leave the application in an inconsistent state.

If true certain run-time consistency checks will be enabled.

If any consistency check fails then an error will be logged in the Application Event Log.

On startup the ABCpdf temp directory is checked. If it appears that there are a large number of unused items then the directory will be cleared.

This setting determines the maximum number of items which are permitted in the directory before a clearout is deemed necessary.

This property is included for backwards compatibility reasons.

Whether registry keys can be overridden on a per-document basis.

To override a registry key use SetInfo passing zero as the ID and, using the name of the key. For example:

theDoc.SetInfo(0, "UseScript", "1")

Note that only keys marked as overridable can be overridden this way.

Some PDFs do not conform to Adobe document structuring conventions. For details see section 4.3.1 of the Adobe PDF Specification.

Conforming documents should save the graphics state at the start of drawing and restore the graphics state after drawing is complete. This way it is guaranteed that drawing operations are independent of each other.

Non-conforming documents may make transform and other graphics state changes which cannot easily be undone. When you add your content it is affected by these leftover state changes.

This key determines whether ABCpdf will automatically detect and fix non-conforming documents.

The default width of borders on Annotations added to PDF documents.

This property is only accessible using the SetInfo method. The default cannot be overridden using a registry key.

The size at which a binary search tree is constructed for HTML rendering.

For larger documents a binary search tree is a much more efficient structure for HTML rendering than is a linear search tree.

For smaller documents the time taken to build the tree can outweigh the speed advantages. So a linear search tree is better.

This property determines the point at which ABCpdf shifts its strategy from linear to binary searches.

Whether to automatically disable HTML filters.

HTML filters can interfere with the HTML to PDF conversion process because they are raster rather than vector based. For this reason we try to disable them.

This property is only accessible using the SetInfo method. The default cannot be overridden using a registry key.

The threshold at which images are JPEG compressed.

When an uncompressed image is added to a document ABCpdf may decide whether to use JPEG (lossy) compression or lossless compression based on an analysis of the image.

ABCpdf counts the number of colors used in the image and if the number is greater than a certain threshold ABCpdf assumes that the image is continuous tone and thus eligible for JPEG compression.

This property is only accessible using the SetInfo method. The default cannot be overridden using a registry key.

Whether we allow MSHTML to be unloaded when the screen depth changes.

Appropriate values are 0 (MSHTML is never unloaded) and 10 (it is unloaded a little while after the screen properties change).

The number actually refers to the number of calls that ABCpdf makes (once a monitor change has occurred) without keeping MSHTML force loaded. We assume that at some point during this period that Windows will unload the DLL.

This property is only accessible using the SetInfo method. The default cannot be overridden using a registry key.