asantoolCompress a PDF
Make a large PDF smaller by rebuilding its pages at a lower resolution. This works extremely well on scans, which are already pictures. On a document with real text it will shrink the file but turn the text into an image — the tool checks which kind you have and tells you before you commit.
Drop a PDF to make it smaller
PDFUp to 100 MB · Your files never leave your device4 steps, no waiting.
- 01Add your PDFDrag the file onto the page or pick it from your device. Nothing is uploaded — it opens straight in the browser.
- 02Check what the tool foundIt measures whether the document has a real text layer, so you know whether compressing it costs you anything.
- 03Pick how hard to compressThree presets, or set resolution and quality yourself.
- 04DownloadThe original stays exactly as it was.
Common questions
Why did my PDF barely get smaller?
Because it was already efficient. PDFs that are mostly text are small to begin with — the size is in fonts and structure, not pictures, and there is little to squeeze. The big wins are on scans and image-heavy documents, which is where most oversized PDFs come from.
Will my text still be selectable afterwards?
No, and this is the honest limit of compressing a PDF in a browser. Pages are re-rendered as images, so text becomes a picture of text — not selectable, not searchable. For a scan that changes nothing, because it was already a picture. For a document you typed, keep the original.
How is this different from what iLovePDF does?
Server-side compressors re-encode the images inside a PDF while leaving its structure and fonts intact, which needs the full PDF object model and a lot of memory. That is genuinely better for text documents. The trade is that your file goes to their servers; here it does not.
Is my document uploaded anywhere?
No. Every PDF tool here runs inside your browser. The file is read from disk, worked on in memory, and written back out — it is never sent to a server. That matters more for documents than photos: contracts, statements and ID scans are exactly the things you should not be uploading to a stranger's website.