How to rewrite a PDF without incremental history in C#

Rewrite the file before saving

If you want a clean output without the previous incremental revision chain, call RemoveHistoryAsync() and then save.

using ZingPDF;

using var pdf = Pdf.Load(File.OpenRead("input.pdf"));

await pdf.RemoveHistoryAsync();
await pdf.SaveAsync(File.Create("rewritten.pdf"));

Use it when the output should only reflect the current document state

A normal save path can preserve incremental history. That is fine in many workflows, but not all of them.

If the output is meant for downstream distribution, archival handoff, or a clean export after edits, rewriting the file can be the better choice.

It changes how the file is written, not what you changed

RemoveHistoryAsync() does not replace your other document updates. It changes how the final PDF is written so the older incremental chain is not carried into the saved output.

That makes it a useful last step after edits such as metadata updates, form filling, decryption, or other document changes.