/**
<summary>Removes indirect objects which have no reference in the document structure.</summary>
<param name="file">File to optimize.</param>
*/
public static void RemoveOrphanedObjects(
File file
)
{
// 1. Collecting alive indirect objects...
ISet<int> aliveObjectNumbers = new HashSet<int>();
{
// Alive indirect objects collector.
IVisitor visitor = new AliveObjectCollector(aliveObjectNumbers);
// Walk through the document structure to collect alive indirect objects!
file.Trailer.Accept(visitor, null);
}
// 2. Removing orphaned indirect objects...
IndirectObjects indirectObjects = file.IndirectObjects;
for(int objectNumber = 0, objectCount = indirectObjects.Count; objectNumber < objectCount; objectNumber++)
{
if(!aliveObjectNumbers.Contains(objectNumber))
{indirectObjects.RemoveAt(objectNumber);}
}
}
/**
* <summary>Removes indirect objects which have no reference in the document structure.</summary>
* <param name="file">File to optimize.</param>
*/
public static void RemoveOrphanedObjects(
File file
)
{
// 1. Collecting alive indirect objects...
ISet <int> aliveObjectNumbers = new HashSet <int>();
{
// Alive indirect objects collector.
IVisitor visitor = new AliveObjectCollector(aliveObjectNumbers);
// Walk through the document structure to collect alive indirect objects!
file.Trailer.Accept(visitor, null);
}
// 2. Removing orphaned indirect objects...
IndirectObjects indirectObjects = file.IndirectObjects;
for (int objectNumber = 0, objectCount = indirectObjects.Count; objectNumber < objectCount; objectNumber++)
{
if (!aliveObjectNumbers.Contains(objectNumber))
{
indirectObjects.RemoveAt(objectNumber);
}
}
}
