You can compress a PDF to a smaller file size here in your browser: open the document, pick how hard to compress it, and download a lighter version — handy for email and upload limits. It shows the before and after size first, and the file is processed on your own device, never uploaded, with no sign-up and no watermark.
How to compress a PDF
Open your PDF.
Choose a compression level — stronger means a smaller file.
Check the before/after size, then download the smaller PDF.
Limits & good to know
Compression works by re-rendering each page at an optimised resolution and image quality and rebuilding the PDF, so the output is image-based — its text is no longer selectable or searchable.
Best for scanned documents, image-heavy files, and any PDF you need under an email or upload size limit; an already-small text PDF may not shrink, and the tool tells you when that happens.
Three levels trade quality for size, and you see the resulting size before you download, so nothing is a surprise.
Everything runs on your device, so very large or high-page-count files are limited by available memory, not an upload queue.
A password-protected PDF must be unlocked before it can be compressed.
Frequently asked questions
Are my files uploaded to a server?
No. TrulyFreePDF runs entirely in your browser — your file is opened and processed on your own device and is never uploaded, stored, or shared.
Does compressing reduce quality?
To a degree, yes — compression re-renders pages at a lower resolution and image quality to save space. You choose the level and see the resulting size before downloading, so you can balance size against quality.
Will the text still be selectable after compressing?
No. This compressor rebuilds each page as an optimised image, so the output is not selectable or searchable text. If you need to keep the text layer, use the original file instead.
Is this really free, or free "until you hit a limit"?
Really free. Unlike most "free" PDF sites there is no task-per-day cap, no locked Pro features, no watermark stamped on your file, and no payment step before download. Every tool is the full tool.