Reduce PNG Document Size to Less Than 300 kb 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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Last updated on Jan 16, 2026

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Fill out, edit, or eSign your PDF hassle-free
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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.
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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.
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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.
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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.
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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.
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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.

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average user rating
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9 min
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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:
I was very upset at the beginning but after contacting customer support the problems were resolved and and I am happy I was able to complete my forms for my disabled grandson.
BRENDA A
2015-11-05
Once I understood how to use the basic features, I was able to quickly modify ongoing billing forms. I saved lots of time with no frustration! Thank you.
Valerie D
2017-02-09
Pretty good. i didnt type for a long time and when i came back it blew away everything i filled out. Is there a way to keep that from happening. of course i know i can just click done but is there a way.
neville b
2018-01-18
My handwriting is horrible! PDFfiller not only solves that problem, inn even the smallest print, but is much more convenient too. A big help when you've got some chores to do!
Denise M
2018-12-24
I am so thankful for its many abilities. I am glad that I can skip the conversion to Microsoft Word first before I can fill the form or edit a document. It has saved a lot of time for me.
Lay Suan Y
2019-02-27
A Great Source for Reference As soon as I came across PDFFiller I immediately subscribed. Any time I need to make a fake document for a Movie or TV show I go right to the site and look up what I'm trying to mimic. 9 times out of 10 I find what I need. I love PDFfiller because it provides me with a wealth of real life uploaded document references for any design I may be trying to mimic. The search feature could be a little better.
Chase W.
2019-05-16
Editing pdfs without the need to convert them What i like the most about this software is the fact that when i have to edit a pdf wher i lost my source document i dont have to convert it in order to edit it, i can just simply use pdf filler editing functions and that's it. Took some getting used to as it, also in some cases is complicated to get the text in the place i selected to put it
EYLENTH P.
2018-03-23
Very useful tool Useful app for managing all your pdf tasks. I always use this app to sign. Very recommended. It doesn't have many free features, you have to pay for the good ones.
Susana V.
2023-02-12
This morning my subscription to PdfFiller was automatically renewed. Once I realized it, I notified the company to cancel my subscription and to provide a refund. Within a short time, I received a response confirming that the subscription was canceled and that the charge was reversed. I would definitely recommend this company and would use them again if I had a need.TL
Tom L
2022-04-15

How to Reduce PNG Document Size to Less Than 300 KB

To Reduce PNG Document Size to Less Than 300 KB, follow these steps

01
Navigate to pdfFiller and sign in to your account or create one if you're new to the platform
02
Click the Add New button to upload a document you need to Reduce PNG Document Size to Less Than 300 KB; browse for the file you need on your device or one of the supported storage services
03
Additionally, browse the pdfFiller library for a template you need
04
If you have uploaded the file before to your account, go to My Documents to find it
05
To reduce the size of a document, click on it and select Split in the right-hand menu
06
Select the pages you need to extract from the original file
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 Split and wait
10
Choose a destination for the files and click the Download Now button

Reduce PNG Document Size to Less Than 300 KB

Do you often struggle with large PNG files that slow down your website or take too long to upload? Our 'Reduce PNG Document Size to Less Than 300 KB' feature provides a simple solution to this common problem, allowing you to maintain quality while minimizing file size.

Key Features

Compress PNG files efficiently without sacrificing image quality
Achieve file sizes under 300 KB, ideal for web use
User-friendly interface that simplifies the compression process
Quick processing time, enabling you to manage multiple images at once

Potential Use Cases and Benefits

Optimize images for faster website loading times
Prepare images for email attachments, ensuring they meet size limits
Enhance social media posts with quick-loading visuals
Manage your photo library effectively by reducing storage space

By using this feature, you can eliminate the hassle of slow uploads and buffering. You will save time and improve overall user experience, whether you are designing a website, sending files via email, or sharing images on social media. Trust this solution to streamline your workflow and enhance your digital presence.

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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?
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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.
Upload your image using the browse button or drop your image in the drop area. visually crop your image.By default, it shows actual file size. Apply rotate 5o left right. Apply flip horingental or vertically. Input your target image size in KB.
Go to the Compress PDF tool. Drag and drop your PDF file into the tool, choose 'Basic Compression'. Wait for us to work on reducing its file size. Click download to save your PDF document.
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.
ImageAlpha is a Mac tool that can reduce PNG files using piquant, pngnq and posterization. You can often reduce size by 40-60% without noticeable loss in quality. Pngquant is a command-line tool that can reduce large 24-bit PNG to small 8-bit PNG with full alpha transparency.
Open your file and click the Image tab in the upper tool panel, then select Image Size. Make sure that the link icon is on to scale proportionately. Change the width and height as needed. Click OK and save with a new filename to preserve your original image.

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Regional Leader - Summer 2025
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Best Meets Requirements- Summer 2025