PDF File
Your PDF is handled locally in this browser. The tool does not need to upload your file to a server.
Target Size
Enter any target size. If the target is smaller, the tool compresses the PDF. If it is bigger, the tool increases the PDF size.
Select a PDF file and target size. This panel shows original size, selected target size, final PDF size, and download button.
No file selected
Preparing PDF...
A PDF size changer is an online tool that helps you make a PDF file smaller or larger to match a required upload size. It is useful when a website, form, exam portal, job application page, or document upload system requires a specific PDF file size.
How to Change PDF Size Online
- Upload your PDF file from your device.
- Enter the target size in KB or MB.
- Click Change PDF Size.
- Download the new PDF file with the changed size.
Why Use This PDF Size Changer?
Many upload portals set both maximum and minimum file size rules. If your PDF is too large, this tool can compress it. If your PDF is too small, it can increase the file size with safe padding. The goal is to help your PDF get closer to the selected target size.
Does This Tool Change PDF Quality?
When increasing size, the visible pages usually stay the same because the tool adds safe padding data. When compressing size, the tool may rebuild pages as optimized images to reduce file size, so very small targets can reduce visual quality.
Privacy and File Safety
This PDF file size changer works inside your browser. The selected PDF is not uploaded by this tool. For private documents, always use trusted pages and check the downloaded PDF before submitting it anywhere.
Best Tips for PDF Size Change
- Choose a realistic target size for better document quality.
- Use KB for small file size changes and MB for larger requirements.
- Check the final PDF size before uploading it.
- Open the downloaded PDF once to confirm that it displays correctly.
- If a target is extremely small, exact compression may not be possible without heavy quality loss.
Frequently Asked Questions
Can I change PDF size to a specific KB or MB?
Yes. You can type the target size and choose KB or MB. The tool compresses or increases the PDF based on that selected size.
Will this change my PDF pages?
Increasing size keeps visible pages the same. Compressing size may reduce image quality if the target size is very small.
Is my PDF uploaded online?
No. The size change process runs in your browser, and this tool does not need to send your file to a server.
What if my target size is smaller than the original PDF?
The tool will try to compress the PDF. If the target is too small, it will create the closest practical file size.