Compress PDF
Reduce PDF file size with structural optimization or explicit image-based compression. intro
How to use Compress PDF
- Choose an ordinary, non-password-protected PDF under 80 MB.
- Try Structural optimization first, which retains searchable text but may not reduce the file size.
- If size is the priority, choose Image-based compression, quality and scale; understand that pages become images without selectable text.
- Download and compare the result with the original. Keep the original file.
Example use
Reduce a scanned photo-heavy PDF for sharing. Try medium JPEG quality and standard resolution; check the resulting pages before sending.
Why use this tool?
Use this free browser utility when you need a focused result without installing desktop software or creating an account. The workspace is designed for a single task, with the input, controls and output kept together.
Privacy, compatibility and limitations
Structural optimization can make some PDFs larger and cannot always recompress embedded streams. Image-based compression rasterizes pages, removes searchable/selectable text, links, annotations, forms, signatures and accessibility tags, and can change quality. Up to 30 pages and 80 MB. Files stay on your device. External PDF library scripts must load.
Questions about Compress PDF
Does Compress PDF preserve selectable text?
Structural optimization normally preserves text. Image-based compression does not: it converts each page to an image. Use the first mode when text and accessibility matter.
Can the PDF get bigger?
Yes. A well-compressed source may already be smaller. The tool reports original and output sizes and warns if the result is larger.
Is it safe for signed PDFs?
No. Any modification can invalidate digital signatures. Do not use either mode on signed documents you need to preserve.
