Last updated on
Jan 16, 2026
Reduce 21 mb PNG 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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Add, remove, or rearrange pages inside your PDFs in seconds. Create new documents by merging or splitting PDFs. Instantly convert edited files to various formats when you download or export them.
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Transform static documents into interactive fillable forms by dragging and dropping various types of fillable fields on your PDFs. Publish these forms on websites or share them via a direct link to capture data, collect signatures, and request payments.
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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
There is a learning curve that I did not anticipate since I have been a long time user of Abobe. Your Live Chat customer support staff are very helpful, knowledgable and friendly!
2018-07-03
It was quick and convenient. The only problem I had is that the updated form was not the correct one sent to the email. It continued to send and older version.
2019-11-12
PDF Filler
ease of completing the form - that makes it look much more professional than a hand written form.
I like the ease of being able to put all my information in on any form. The software easily moves you from one field to the next to populate. Everything looks much more professional than a handwritten form.
I don't like the fact that I cannot save my form. I can print it but it saves as a blank form. Maybe I am doing something wrong, since I just started using it, but it did not save what I put in.
2019-03-15
Excellent software
I can edit pdf files easily. It is also very easy to place the signature on them
Excellent software, it is very easy to use. Ideal for Fax shipments from documents. I can have online documents to edit them later
Technical support is sometimes very slow. Some images lose a bit of quality. But in general lines this software is very complete
2018-07-10
What do you like best?
Easy to use and updates my pdfs in minutes. Great for filling out forms and digitally signing documents in a remote working environment.
What do you dislike?
While there are tools to keep text boxes aligned, it could be a bit stronger when filling out forms.
What problems is the product solving and how is that benefiting you?
PdfFiller is a great tools for remote working. It solves issues with filling out forms, signed documents and much more when an employee does not have access to a printer or scanner.
2022-11-09
Great tool for PDF format
It's good to have it and override feature added on
Smaller storage, clearer version, can override it, often use PDF format due to easier for storage, while others take too much storages
It's not free and commercialize product, so it can be personal use. It has limited features when it's not upgraded to an override version
2021-04-25
Thrilled with this app!
After I found this option, I've been thrilled with it. No more prints and write; now I do everything directly in the computer. Less environmental damage, no ink and no papers. Loved it!
2020-10-06
I don't usually leave reviews...Customer service is A+
I don't usually leave reviews, but this product deserves my time.Works very well in filling PDFs. Typing, checking boxes (using the checkmark or "x" feature), filling out tables, etc. Saving and editing again works well, though it isn't entirely intuitive the first time.Customer service was absolutely awesome! I realized, after signing up for a paid subscription, that I no longer needed the service. I cancelled online (or THOUGHT I did), but I must've had a glitch. When I got billed, I called and they issued me a refund no questions asked and zero hassle.
2020-09-01
At work, I use ABBY and it is very effective. I didn't think to get that before I chose this. I was searching quickly, but am ok with it. I would to redact in groups by typing the first few characters.
2025-04-04
How to Reduce 21 MB PNG File to 15 mb
Learn how to Reduce 21 MB PNG File to 15 mb using pdfFiller
01
Go to the pdfFiller.com website and login if you’re already a registered user or sign up for free
02
Click the Add New button to upload a document you would like to Reduce 21 MB PNG File to 15 mb; search for the file on your desktop or one of the supported storage services
03
Additionally, search for a document from the pdfFiller library or navigate to the document with direct link
04
In case you have the document you need in your account, simply go to the Documents section and find it there using the search
05
To Reduce 21 MB PNG File to 15 mb, click on it and select Split in the right-hand menu
06
Specify the pages you would like to separate from the original file by clicking on them
07
Alternatively, you can divide the document in a half and keep required pages in it
08
Add a title to each document or leave them as is
09
Now click the Split button and wait for the process to finish
10
Save the results by clicking Download Now to your desktop
Reduce 21 MB PNG File to 15 MB
Struggling with oversized PNG files? Our Reduce 21 MB PNG File to 15 MB feature helps you downsize your image without losing quality. You can make sharing and uploading images easier, ensuring you always have the right file size for your needs.
Key Features
Quick reduction of PNG file size from 21 MB to 15 MB
Maintains image quality during the reduction process
Easy to use with a simple interface
Compatible with various devices and operating systems
No installation needed, works directly online
Potential Use Cases and Benefits
Share images on social media without exceeding file size limits
Upload images to websites that have strict size requirements
Email high-quality images without hitting attachment size caps
Store more images on your devices without sacrificing quality
By using our feature, you can eliminate frustration when dealing with large files. This solution simplifies your workflow and enhances your productivity. With just a few clicks, you can achieve smaller files that still look great. Let us help you make your image handling easier.
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 compress a PNG file in Windows?
Select the picture you want to compress.
Click the Picture Tools Format tab, and then click Compress Pictures.
Do one of the following: To compress your pictures for insertion into a document, under Resolution, click Print.
Click OK, and name and save the compressed picture somewhere you can find it.
How to Compress a PNG Image Online:
1Start with our Compress tool upload your PNG.2Choose 'Basic Compression,' and hit 'Choose Option. '3On the next page, click 'to JPG. '4Wait for the conversion to finish.5Download your compressed PNG, now in JPG format.
How do I compress a PNG file without losing quality?
The best option to compress your PNG files without affecting image quality is using a program such as WinZip. This compression doesn't just save you a lot of space; you also get a more convenient way of storing them in archives, like compressed folders.
How do I reduce the size of a PNG image?
Tiny PNG is an online tool that uses lossy compression to reduce the file size of PNG images.
Way2enjoy is another online tool that uses same lossy compression to reduce the size of PNG, JPEG & GIF images.
ImageAlpha is a Mac tool that can reduce PNG files using pngquant, pngnq and posterization.
How do I compress a PNG file size online?
Start with our Compress toolupload your PNG.
Choose 'Basic Compression,' and hit 'Choose Option. '
On the next page, click 'to JPG. '
Wait for the conversion to finish.
Download your compressed PNG, now in JPG format.
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