Does Downloading from LocalPDF Reduce Your PDF's Quality?

After clicking download, it's natural to wonder: does the exported file end up lower quality, much larger, or does previously selectable text turn into an image? This article walks through what actually happens at export.

Does existing image content get compressed?

No. LocalPDF doesn't re-compress or re-encode images that were already in the PDF and that you didn't actively edit — the original image data is carried through unchanged into the exported file. Only an image you actively replace uses the new file you uploaded (quality then depends on that new image itself).

Does existing text stay "text" after export?

Yes — as long as you haven't modified that specific text with "Edit Original Content," it stays a selectable, searchable, copyable text object after export, never converted into an image. If you did edit a piece of text, the replacement is also a genuine text object (rendered with a substitute font — see our article on avoiding font mismatches when editing PDF text), not flattened into a picture.

Does page size change?

No. Unless you actively rotate a page, each page's original dimensions (A4, Letter, etc.) stay exactly the same after export.

Why file size might change after export

If you added new images or a lot of highlights and annotations, the file naturally grows to accommodate that new content — that's normal, and it's a different thing from "quality being compressed." If you added CJK text, the font data for the characters you used gets embedded on export, which adds some size too (but only the characters actually used, so the increase is limited).

How to verify this yourself

If you want to confirm for a specific detail, zoom both the original and the exported file to the same level and compare the same region side by side — anything you didn't edit should look identical in quality.