How to Compress a PDF into a ZIP File for Email
Question details
The user needs to reduce the file size of a PDF document by compressing it into a ZIP archive so it can be successfully attached to an email.
- Product
- Device & OS
- Windows and Mac
- Scenario
- Preparing a large PDF file to be sent via email by meeting the provider's attachment size limit.
- Observed behavior
- The PDF file is too large to attach directly to an email, prompting the need for file compression.
Check your email provider's maximum attachment size limit (typically 20MB to 25MB) and ensure the recipient knows how to extract ZIP files on their device.
Compress a PDF to a ZIP Folder on Windows
Use the built-in Windows compression utility to quickly create a ZIP archive of your PDF without needing third-party software.
Open File Explorer and navigate to the folder where your PDF document is saved.
Right-click on the PDF file to open the context menu. Hover over 'Send to' to reveal additional options.
Select 'Compressed (zipped) folder'. Windows will immediately create a new ZIP file in the same location with the same name.
Open your email client, compose a new message, and attach the newly created ZIP file.
Compress a PDF to a ZIP File on Mac
Use the native macOS Archive Utility to compress your PDF document into a smaller ZIP file.
Use WPS Office to Compress PDFs Directly
Since ZIP archives often fail to significantly shrink already-compressed PDF files, using a dedicated PDF compressor is a much better approach. WPS Office includes a built-in PDF compression feature that intelligently optimizes text and images, actively reducing the actual document size while maintaining excellent readability for email sharing.
- 1. Open your PDF in WPS Office: Launch WPS Office and open the large PDF file you want to send.
- 2. Navigate to the Tools tab: Click on the 'Tools' tab located on the top ribbon menu.
- 3. Select Compress PDF: Click on the 'Compress PDF' button to open the compression dialogue box.
- 4. Choose compression level: Select your desired compression level (such as HD or Normal) and click 'Compress' to save the smaller PDF file for your email.
Frequently Asked Questions
Why didn't zipping my PDF reduce the file size significantly?
PDFs are often already compressed, especially if they contain optimized text or JPEG images. ZIP compression algorithms look for redundant data, which is scarce in already-compressed files, resulting in little to no further size reduction.
What is the typical email attachment size limit?
Most major email providers, including Gmail, Outlook, and Yahoo, enforce a strict maximum attachment size limit of 20MB to 25MB per email.
How do I send a PDF if it is still too large after zipping?
If your file is still over the email size limit, consider using a cloud storage service like Google Drive, Dropbox, or OneDrive. Upload the file there and paste the sharing link into your email body.
Can I zip multiple PDFs into one file for an email?
Yes. On both Windows and Mac, simply highlight all the PDFs you want to send, right-click (or Control-click on Mac), and select the option to compress. This will bundle all the PDFs into a single, organized ZIP archive.
