DoctorConverter

Compress a PDF to Send by Email

Gmail and Outlook cap attachment sizes. Compress your PDF or split it into parts so it goes through as a normal attachment.

Drop your file here

or choose from your device

PDF Files are only sent when you start the job.

Start the job

  • 10.0 MB per file
  • Up to 1 files
  • 300 pages
  • Kept for 60 minutes

Uploaded files are stored temporarily and removed when they expire. An accepted job keeps running even if you close the page.

Good to know
Files that are already optimized may not get smaller.

People find this page by searching

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Two ways to get under the limit

Compress PDF optimizes the file without changing its content. If it is still too large, split it with Edit PDF pages and send the parts in separate emails.

How to use Compress a PDF to Send by Email

  1. 1

    Upload

    Choose the PDF you want to send.

  2. 2

    Compress

    Optimize it and check the result size.

  3. 3

    Send

    Attach the smaller file to your email.

Do it now ↑

Tips

  • Remove cover pages and blank pages before sending large reports.

Tools used

Frequently asked questions

Does it change the content?

No, the content and layout stay the same.

Related guides

SECURITY & ARCHITECTURE

Why DoctorConverter? Privacy and Performance Standards.

Isolated RAM Processing

Files are processed in an isolated sandbox environment without persistent storage and never shared with AI models.

Native Open-Source Engines

Powered by industry-standard QPDF, PyMuPDF, LibreOffice Impress and Tesseract OCR.

Instant Disposal & Zero Traces

Delete files immediately with one click after processing, or rely on automatic session cleanup.

Your Files Belong Strictly to You

DoctorConverter protects all data transfers with end-to-end TLS encryption. No document archives are kept on our infrastructure.

Frequently Asked Questions

Is DoctorConverter really free?

Yes. PDF conversion, merging, compression and all everyday document operations are 100% free with no sign-up.

Where do my files go and when are they deleted?

Your files are transmitted securely over TLS into memory. You can click "Delete files" anytime to erase them instantly, and the system automatically purges temporary data.

Does PDF to Word or Excel preserve the original layout?

Text-based PDFs are reconstructed into clean Word and Excel documents with typography, tables and columns preserved.

Which file formats are supported?

PDF, DOCX (Word), PPTX (PowerPoint), XLSX (Excel), JPG and PNG. Password-protected PDFs can be unlocked using our Unlock PDF tool.