Reduce PNG Size Less Than 400 kb For Free

Drop document here to upload
Select from device
Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
Note: Integration described on this webpage may temporarily not be available.
0
Forms filled
0
Forms signed
0
Forms sent
Last updated on Jan 16, 2026

Try these PDF tools

Edit PDF
Quickly edit and annotate PDFs online.
Sign
eSign documents from anywhere.
Request signatures
Send a document for eSignature.
Share
Instantly send PDFs for review and editing.
Merge
Combine multiple PDFs into one.
Rearrange
Rearrange pages in a PDF document.
Compress
Compress PDFs to reduce their size.
Convert
Convert PDFs into Word, Excel, JPG, or PPT files and vice versa.
Create from scratch
Start with a blank page.
Edit DOC
Edit Word documents.

Discover the simplicity of processing PDFs online

Card illustration
Upload your document in seconds
Card illustration
Fill out, edit, or eSign your PDF hassle-free
Card illustration
Download, export, or share your edited file instantly
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025

Every PDF tool you need to get documents
done paper-free

Card illustration

Create & edit PDFs

Generate new PDFs from scratch or transform existing documents into reusable templates. Type anywhere on a PDF, rewrite original PDF content, insert images or graphics, redact sensitive details, and highlight important information using an intuitive online editor.
Card illustration

Fill out & sign PDF forms

Say goodbye to error-prone manual hassles. Complete any PDF document electronically – even while on the go. Pre-fill multiple PDFs simultaneously or extract responses from completed forms with ease.
Card illustration

Organize & convert PDFs

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.
Card illustration

Collect data and approvals

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.
Card illustration

Export documents with ease

Share, email, print, fax, or download edited documents in just a few clicks. Quickly export and import documents from popular cloud storage services like Google Drive, Box, and Dropbox.
Card illustration

Store documents safely

Store an unlimited number of documents and templates securely in the cloud and access them from any location or device. Add an extra level of protection to documents by locking them with a password, placing them in encrypted folders, or requesting user authentication.

Customer trust by the numbers

64M+
users worldwide
4.6/5
average user rating
4M
PDFs edited per month
9 min
average to create and edit a PDF
Join 64+ million people using paperless workflows to drive productivity and cut costs

Why choose our PDF solution?

Cloud-native PDF editor

Access powerful PDF tools, as well as your documents and templates, from anywhere. No installation needed.

Top-rated for ease of use

Create, edit, and fill out PDF documents faster with an intuitive UI that only takes minutes to master.

Industry-leading customer service

Enjoy peace of mind with an award-winning customer support team always within reach.

What our customers say about pdfFiller

See for yourself by reading reviews on the most popular resources:
it was easy but i still was trying send… it was easy but i still was trying send it to the person and i have not got it back saying it got to them
Jenni Cash
2020-04-13
Good less expensive alternative to some of the competition Overall, I have been satisfied with PDFfiller The software works just like advertised. I love that it is super reliable to work when I need it. The user interface was slightly challenging to get used to but after that, it has been nice.
Daniel H.
2019-08-21
PDFFIller was very attentive in helping… PDFFIller was very attentive in helping me accomplish my goals. I appreciate them going out of their way to help me with my documents. I feel so much better knowing my documents are accurate and complete.
Margaret Cook
2023-06-09
What do you like best? I can upload any document. I can fill out forms sent to me by others and resend them on the quickness. What do you dislike? I have not found anything that I dislike about it. What problems are you solving with the product? What benefits have you realized? I save time by not having to print and scan forms and also saves paper.
Amy Mora
2022-02-14
What do you like best? It's super fast to upload a document and simple to navigate the website. Filling out your PDF couldn't be easier! What do you dislike? The point where you save your document could be a little easier to understand but because I've been using them for 7+ years, I've got a handle on it. For someone just starting may find it a tiny bit confusing. Recommendations to others considering the product: This is a great platform to turn your PDF forms to fillable forms! It's easy to use and the price is nominal! Totally worth it! What problems are you solving with the product? What benefits have you realized? It's so easy to use! Make any PDF fillable! I have a tiny bit of OCD and filling in a form by hand just doesn't look professional enough for me so converting those forms to fillable using PDFFiller is a must!
Karen Livingston
2022-02-12
Making editing so easy and fuss free Making editing so easy and fuss free! Hope that the membership could be more affordable or have a student price perhaps.
JL Tan
2021-12-24
had to find something quick to fill out a form online and came across pdfFiller and tried it out. I was more than satisfied. I am trying the 30 day trial out and will comment when the time is up.
Roel G
2021-04-26
I find that it was ok except the fact… I find that it was ok except the fact of having to put my credit card in for doing something the same day.. for a 30 day trial. ABSOLUTELY SAD :(
Lorie Crawford
2020-12-03
My amount of payroll is small and… My amount of payroll is small and uncomplicated, and therefore this site/tool met my need! Simple and uncomplicated.
Janice A. a Boro Secretary
2025-01-12

How to Reduce PNG Size Less Than 400 KB

Learn how to Reduce PNG Size Less Than 400 KB with pdfFiller

01
Go 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; sync a cloud storage account to be able to search for documents from there
03
Alternatively, browse the pdfFiller library for the template you need
04
If you've already uploaded the file to your account, navigate to My Documents to find and open it
05
To Reduce PNG Size Less Than 400 KB, click on it and select Split in the right-hand menu
06
Indicate the pages you need to separate from the original file by clicking on them
07
Additionally, you can divide the document in a half and keep required pages in it
08
Name the new files or leave them with generic names
09
Click the Split button
10
Select a destination for saving newly created documents and click Download Now

Reduce PNG Size Less Than 400 KB

In today's digital age, managing file sizes is essential. Our Reduce PNG Size feature allows you to easily compress PNG files to less than 400 KB without losing quality. This solution is ideal for anyone needing to optimize images for web use, email attachments, or social media uploads.

Key Features

Compress images to under 400 KB seamlessly
Maintain high-quality resolution
User-friendly interface for easy operation
Supports batch processing for multiple files
Fast processing speed to save you time

Potential Use Cases and Benefits

Optimize images for websites to improve loading times
Send images via email without exceeding size limits
Share high-quality images on social media platforms
Prepare images for online portfolios or digital projects

This feature addresses common challenges users face with large image files. By reducing the size of your PNG images, you can enhance performance, save storage space, and facilitate smoother sharing and uploading processes. Enjoy effortless image management and focus more on your creative projects.

Get documents done
from anywhere

Create, edit, and share PDFs even on the go. The pdfFiller app equips you with every tool you need to manage documents on your mobile device. Try it now on iOS or Android!

How to Reduce PNG Size Less Than 400 kb

Reducing the size of your PNG files to less than 400 kb can help optimize your documents and make them easier to share and upload. Follow these simple steps to use the Reduce PNG Size feature in pdfFiller:

01
Open the pdfFiller website or app and log in to your account.
02
Upload the PNG file you want to reduce in size. You can do this by clicking on the 'Upload' button and selecting the file from your computer or cloud storage.
03
Once the file is uploaded, click on the 'Tools' tab at the top of the page.
04
In the 'Tools' menu, select the 'Reduce PNG Size' option.
05
A new window will appear with options to customize the compression settings. You can choose the desired output size, in this case, less than 400 kb.
06
Adjust the compression settings according to your preferences. You can experiment with different settings to find the balance between file size and image quality that suits your needs.
07
After customizing the settings, click on the 'Apply' button to start the compression process.
08
Once the compression is complete, you can download the reduced PNG file by clicking on the 'Download' button.
09
Congratulations! You have successfully reduced the size of your PNG file to less than 400 kb using pdfFiller's Reduce PNG Size feature.

By following these steps, you can easily optimize your PNG files and make them more manageable for sharing and uploading. Enjoy using pdfFiller's Reduce PNG Size feature!

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
The best Photoshop method to resize images without losing quality is through Perfect Resize. Perfect Resize automates the resampling process with extreme ease of use, giving you a perfect resized image with the same level of quality. To use Perfect Resize, first, open the resize image in the application.
Convert the JPG to a PDF first. On the result page, click 'Compress' (under the Download button). Choose 'Basic Compression' and wait for our software to compress the file. On the next page, click 'to JPG' to save the file as an image. Download your new and compressed JPG.
Open Raw.pics.io resizer by clicking START. Select PNG file that needs resizing. Click Save. Change the image size in pixels age the way you like: by the largest side, by height, or by width. By doing this, the proportions of the photo will not be distorted. Download resized PNGs where you want.
Drag and drop your JPEG into the Image Compressor. Choose the 'Basic Compression' option. On the following page, click 'to JPG.' Choose 'Extract Single Images' (this is important). Donedownload your compressed JPEG.
Reduce PNG file size by limiting colors One of the most basic ways to cut down on a PNG's file size is to limit the number of colors that the image has. PNGs can be saved as Grayscale, True color, Indexed-color, Grayscale with alpha, and True color with alpha.
Click Quick Upload. Click Choose file. Click the photo that you want to resize. Click Open. Click Set File Size. Type a file size in kBs. Click Resize File. Click Save.

#1 usability according to G2

Try the PDF solution that respects your time.
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025