Reduce PDF File Size Online Free
A PDF that was fine on your computer becomes a problem the moment you need to email it or upload it somewhere. Large PDFs bounce off attachment limits, time out on slow connections and eat phone storage. Here is how to make any PDF dramatically smaller in seconds, free.
How to reduce a PDF file size
- Upload your PDF to the Trencada PDF compressor.
- Pick a target size or compression level.
- Compress the file.
- Download the smaller PDF and check the pages.
What makes PDFs so large?
- High-resolution images embedded at print quality.
- Scanned pages saved as full-page photos.
- Embedded fonts duplicated on every page.
- Unused metadata and editing history bloating the file.
Frequently asked questions
How much smaller can my PDF get?
It depends on the content. Image-heavy and scanned PDFs often shrink by 80 to 90 percent. Text-only PDFs are already compact and shrink less.
Will reducing the size hurt quality?
Light compression is invisible in normal use. Aggressive compression softens images first; text usually stays sharp much longer.
Is there a maximum file size I can upload?
The tool handles everyday PDF sizes comfortably, including large scanned documents. Very large files simply take a little longer.
Do I need to install anything?
No. Everything runs in your browser. There is nothing to download and no account to create.
Is it really free?
Yes. Free with no signup, no watermark and no usage limits.