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Reduce the size of your PDFs to email them, attach them to forms or save space, while keeping them clear to read. This tool processes the file on a secure server and deletes it immediately after delivery.
Drag your files here
or click to select
Upload the file
Drag the PDF into the upload area or click to select it.
Choose the level
Select light compression to preserve quality or strong for the smallest possible size.
Compress
Click Compress PDF and wait a few seconds while the file is optimised.
Download the result
Download the reduced PDF. The uploaded file is deleted from the server right after the download.
In most cases, a PDF's weight comes from images. Scanned documents, high-resolution photos and screenshots take up far more space than text. Embedded fonts, thumbnails and metadata accumulated over several edits also grow the file without you noticing.
Compressing a PDF mainly means recompressing those images to a resolution suited to screens and ordinary printing, plus removing unnecessary data. The result is a lighter file that opens and loads faster, without changing the document's content.
Compression is a trade-off: the smaller the file, the more likely you are to notice a loss on very detailed images. For text documents and scanned contracts, strong compression usually shrinks the size a lot without hurting readability. For catalogues full of photos, the light level is the safer choice.
Be realistic about expectations: the reduction depends on the content. A PDF that is already just text has little to compress, while one full of images can shrink dramatically. If your goal is to get under a specific limit, such as a 25 MB email attachment, start with the strong level and adjust if you need more quality.
Unlike many Free PDF Lover tools that run entirely in your browser, high-quality compression has to run on a server, because it relies on processing that is not practical on your device alone. We prefer to be transparent about this rather than promise something the technology does not deliver well in the browser.
To protect you, the file is sent over a secure connection, processed in isolation and deleted immediately after the download. We keep no copies, we do not store the content and we do not use your documents for any other purpose. If the document is extremely sensitive, consider compressing it in an offline application.
Yes. Compression is free and watermark-free. Larger size limits and batch processing are part of the premium plan.
It depends on the content. PDFs with many images can shrink a lot, while text-only files reduce little because they are already light.
At the light level the difference is minimal and rarely noticeable. At the strong level, very detailed images may lose sharpness, but text stays readable.
No. The file is deleted immediately after delivery. We keep no copies and do not use the content for any other purpose.
High-quality compression needs processing that does not run well in the browser alone. Tasks like merging and splitting PDFs, on the other hand, work 100% on your device.
There is a per-file limit on free use to keep the service fast for everyone. The premium plan raises that limit.
Yes. Since processing happens on the server, it works well even on simpler devices.