Last updated on
Jan 16, 2026
Reduce 21 mb PDF File to 15 mb For Free
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Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
I'm just beginning and not sure I'm using it correctly. what I'd like to do is to be able to simply use the icon in my internet task bar to open the account rather than have to open up pdffiller.com
2016-09-27
It made a nice document. The only thing that is challenging is that you have to go line by line instead of having an option to change more than one line.
2020-02-01
A great Program
Its a good program, but it takes a few minutes to get use to the actual text placement for your fill in. I did not try the signature feature. I will continue to use this program. I'll use it more often as I get use to it.
2024-09-14
PdfFiller - Sign
I adopted this tool from the first day
I can sign all documents without print them and scan them...
More expensive.It was better : new pricing plan : pay to sign for one document
2023-02-15
I am more than satisfied with the…
I am more than satisfied with the functions of this application. As a student I find this platform to be very useful. I plan on keeping my subscription
2021-01-31
What do you like best?
Ability to quickly and easily edit PDF's
What do you dislike?
Sometimes it's difficult to undo changes made.
What problems are you solving with the product? What benefits have you realized?
I work in real estate and I often need to fill in PDF's with information for my clients. Being able to do in a web based platform makes it easy to do on any computer.
2020-08-30
How to Reduce 21 MB PDF File to 15 mb
To Reduce 21 mb PDF File to 15 MB, follow these steps
01
Navigate to pdfFiller and login to your account or create one if you're a new member
02
Click the Add New button and browse for a document you need to compress, from your desktop or cloud storage
03
Additionally, browse the pdfFiller library for the template you need
04
If you have the file uploaded to your account before, navigate to My Documents to find it
05
Click the Split option in the right-hand menu to Reduce 21 MB PDF File to 15 mb
06
Select the pages you want to extract from the original file
07
Alternatively, you can divide the document in a half and keep required pages in it
08
Type file titles to each of them or leave them as is
09
Click Split and wait
10
Choose a path for saving newly created documents and click the Download Now button
Reduce 21 MB PDF File to 15 MB
Are you facing challenges with large PDF files? Reducing a 21 MB PDF file to 15 MB can greatly improve your efficiency. With this feature, you can quickly compress your files without losing essential quality or content.
Key Features of the Compression Tool
Streamlined process for easy file reduction
High-quality output that maintains document integrity
Fast compression speeds to save your time
User-friendly interface for all skill levels
Use Cases and Benefits
Emailing documents without attachment size issues
Uploading files to cloud storage with size limits
Facilitating smoother file sharing in online meetings
Saving storage space on your device
This tool addresses your need for efficient file management. By reducing your PDF file size, you eliminate issues related to file sharing and storage. You can focus on your work without worrying about file limitations, making tasks easier and smoother.
How to Reduce a 21 mb PDF File to 15 mb
Reducing the size of a PDF file can be helpful when you need to send it via email or upload it to a website. With pdfFiller's Reduce 21 mb PDF File to 15 mb feature, you can easily compress your PDF file without compromising its quality. Follow these steps to reduce your PDF file size:
01
Open the pdfFiller website or app and log in to your account.
02
Click on the 'My Forms' tab to access your saved PDF files.
03
Select the 21 mb PDF file that you want to reduce in size.
04
Once the PDF file is open, click on the 'More' button located at the top right corner of the screen.
05
From the dropdown menu, choose the 'Reduce File Size' option.
06
A pop-up window will appear, allowing you to select the desired file size. Choose '15 mb' from the options provided.
07
Click on the 'Reduce' button to start the compression process.
08
Wait for the process to complete. The time taken will depend on the size of your PDF file and your internet connection speed.
09
Once the compression is finished, a notification will appear indicating that your PDF file has been successfully reduced to 15 mb.
10
You can now download the compressed PDF file to your device or continue working with it on pdfFiller.
By following these simple steps, you can easily reduce a 21 mb PDF file to 15 mb using pdfFiller's convenient Reduce File Size feature. Enjoy the benefits of a smaller file size without compromising the quality of your PDF documents!
For pdfFiller’s FAQs
Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.
What if I have more questions?
Contact Support
How do I reduce the size of a PDF under 20 MB?
Step 1: Upload PDF file. Drag your PDF file on to the drop zone above, or click Upload to choose a file from your computer.
Step 2: Compress PDF. Once the file is uploaded, you can reduce PDF size online using DocFly's free PDF compressor.
Download file.
How do I reduce the MB file size?
From the file menu, select Reduce File Size.
Change the picture quality to one of the available options besides High Fidelity.
Choose which images you want to apply the compression to and click Ok.
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