When to use this conversion
Email providers and company inboxes often reject large PDF attachments or make them slow to send.
Best workflow
Compress the PDF first, then confirm the file still opens clearly before sending it to a client, teacher, or employer.
Use the free tool
Open Compress PDF to complete this task. The tool page includes the active converter, privacy guidance, FAQs, and related formats.
Quality checklist
- Keep your original file until the new file is verified.
- Check that text, faces, logos, or important details remain readable.
- Use compression only as much as the upload limit requires.
- Confirm the output format is accepted by the app, portal, or website.