Optimize PDF
Losslessly rebuild the PDF: remove unused objects, compress streams and prepare it for fast viewing.
Drop a PDF here
or click to browse · up to 100 MB each · press U
Any PDF
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How it works
- Upload the document.
- Run the tool — there is nothing to configure, because nothing about the appearance changes.
- Compare the real before and after sizes, then download.
What goes in, what comes out
- Accepts
- Any PDF
- Produces
- A rebuilt PDF, visually identical
- File limit
- 100 MB per file
- Your original
- Never modified — the result is a new file
- Retention
- Removed automatically after 2 hours
When people use it
- Tidying a file that has grown after many rounds of editing.
- Speeding up first-page display for a document served on the web.
- Cleaning up before archiving, without touching visual quality.
Questions about Optimize PDF
Will my file definitely get smaller?
Not necessarily. Optimization removes waste — orphaned objects, redundant data, uncompressed streams. A file that is already clean may shrink very little, or not at all. Nothing is lost either way. If you need a guaranteed reduction, use Compress PDF.
What is the difference from Compress PDF?
Optimize is lossless: pixels and text are untouched. Compress downsamples images, which does reduce quality. Optimize first; compress only if you still need more.
Does it change how the document looks?
No. The rendered result is identical, page for page.
