Compress PDF Online
Reduce PDF file size for email or messaging — choose from three compression levels while keeping text readable.
Drag PDFs here or select files to compress.
Online PDF Compression Service
Is your PDF too large for email limits or slow to upload in a messenger? Upload the file — the service will reduce its size while keeping text readable. Ideal for presentations with screenshots, scans, catalogs, and reports with graphics.
When to Compress a PDF
- Sending by email — many email services limit attachment size.
- Publishing on a website — a lighter PDF opens faster on mobile devices and slow connections.
- Sharing in messengers — a smaller file uploads and downloads faster for the recipient.
PDF Compression Levels
- 75% — recommended — a balance of quality and size for most documents.
- 50% — medium — noticeable size reduction with acceptable image quality.
- 25% — maximum — minimum file size when image quality is less important.
How to Reduce PDF File Size
- Upload one or more PDFs — up to 20 files with a combined limit of 100 MB.
- Choose a compression level in the panel on the right: 75%, 50%, or 25%.
- Click Compress PDF and download the reduced files from the links after processing.
Frequently Asked Questions
- How do I compress a PDF online and reduce file size?
- Upload a PDF, choose a compression level (75%, 50%, or 25%), and click Compress PDF. Download the reduced file from the link after processing. No registration needed.
- Which PDF compression level should I choose?
- 75% is the recommended balance of quality and size. 50% offers noticeable reduction for email sharing. 25% provides maximum compression when minimum file weight is the priority.
- Can I compress multiple PDFs at once?
- Yes. Upload up to 20 PDFs with a combined size of up to 100 MB — each file is processed separately at the selected compression level.
- Will text in the PDF remain readable after compression?
- Yes. Compression primarily reduces the size of images and graphics inside the document. Text blocks remain readable at all three levels.
- Are PDFs deleted after compression?
- Yes. Source files are used only to create compressed copies and are not published. They are deleted from the server after processing.