Last updated on
Dec 29, 2025
Edit your PDF and compress it directly within the editor. Choose from high, medium, or low compression levels to balance quality and file size according to your needs.
Reduce 21 mb Image File to 15 mb with pdfFiller
How can you reduce a 21 mb image file to 15 mb?
To reduce a 21 mb image file to 15 mb using pdfFiller, simply upload your image, select the compression settings, and download the optimized file. The process is straightforward and quick, ensuring minimal loss in quality while achieving your desired file size.
What is an image file?
An image file is a digital file that contains graphical data, representing visual information. Common formats include JPEG, PNG, GIF, and TIFF. Image files are typically used for photos, illustrations, and other visual content in various applications.
Why is it essential to reduce a 21 mb image file to 15 mb for document management?
Reducing file sizes is critical in document management as it saves storage space, facilitates easier sharing, and enhances loading speeds. Smaller files are particularly advantageous for online submission or emailing, where size limits may apply. Additionally, optimizing file sizes can improve workflow efficiency in tasks requiring multiple images.
What are the key features of pdfFiller for reducing image file sizes?
pdfFiller offers key features for image compression that enhance user experience and document management efficiency. These features include customizable compression levels for users wishing to balance quality and size, batch processing for handling multiple files simultaneously, and an intuitive interface that reduces the time required for file management tasks.
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Customizable compression levels for greater control over file quality.
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User-friendly interface designed for quick navigation and ease of use.
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Batch processing capability to handle multiple files efficiently.
Which file formats are supported for reducing size?
pdfFiller supports a variety of file formats for size reduction. The common formats include JPEG, PNG, and TIFF, which are widely used for image files. This diversity allows users to manage different image files seamlessly within the platform.
What compression levels and customization options are available?
pdfFiller provides various compression levels that allow users to choose between different quality settings. Users can select higher compression for substantial size saving or opt for lower compression when quality is a priority. Additionally, pdfFiller allows pre-defined settings for quick optimization.
How does batch processing work for large volume resizing?
Batch processing in pdfFiller enables users to upload and compress multiple images at once. This feature is particularly useful for teams working on large projects, as it saves significant time compared to manual resizing. Users can apply the same compression settings across all selected files to ensure consistency.
How to use pdfFiller to reduce a 21 mb image file to 15 mb: step-by-step guide
To successfully reduce your image file size using pdfFiller, follow these steps:
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Visit the pdfFiller website and log in to your account.
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Upload your 21 mb image file to the platform.
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Choose the compression settings based on your needs.
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Click on the 'Compress' button to initiate the reduction process.
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Download the newly compressed 15 mb image file.
What are the benefits of reducing image file sizes with pdfFiller?
Using pdfFiller to reduce image file sizes comes with several benefits. Firstly, it enhances storage efficiency, allowing users to keep more files without exceeding limits. Secondly, smaller files facilitate quicker uploads and downloads, improving collaboration. Lastly, maintaining image quality while reducing size ensures that visuals retain their clarity and professionalism.
What industries benefit from reducing image file sizes?
Many industries can take advantage of efficient image file management through size reduction. For instance, marketing teams require optimized images for digital campaigns, while e-commerce businesses need quick-loading product images. Additionally, education and medical sectors utilize compressed images for reports and documents to ensure they fit within size constraints.
How does pdfFiller compare with alternatives for reducing image file sizes?
While there are numerous alternatives for image file compression, pdfFiller distinguishes itself through its comprehensive platform features. Unlike standalone compressors, pdfFiller integrates compression with document management capabilities such as editing and electronic signatures, offering a holistic solution for users. In contrast, other tools may lack batch processing or customizable compression options.
Conclusion
In conclusion, reducing a 21 mb image file to 15 mb is made straightforward with pdfFiller, which provides a capable and user-friendly platform for document management. With features like customizable compression, batch processing, and support for various formats, pdfFiller serves individuals and teams seeking an efficient solution for file management tasks. Embrace the power of pdfFiller to streamline your document processes today.
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Edit PDFs online almost as easily as Word documents. Add text, adjust formatting, replace content, insert images, and more. pdfFiller has all you need to get your documents done from start to finish.
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How to compress your PDF?
1. Upload your document
Upload a document from your device, cloud storage, email, or URL.
2. Open a document in the editor
Edit your document and click the Compress button in the top menu panel.
3. Set compression parameters
Select the file format, destination, and compression level, then hit Save.
Who needs this?
Explore how professionals across industries use pdfFiller to compress PDFs
Education
Teachers and administrators can reduce file sizes for effortless sharing with pdfFiller’s compress feature, and enhance collaboration between students and educators with pdfFiller's tools designed for seamless collaboration.
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Lesson plans
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Student enrollment forms
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Class schedules
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Permission slips
Real Estate
Real estate agents and brokers compress PDFs to quickly share documents with clients and colleagues via email attachments or a link. They also use pdfFiller to customize templates, ensuring everything is consistent and error-free.
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Property listing brochures
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Lease agreements
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Sales contracts
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Property management forms
Healthcare
Healthcare professionals use pdfFiller to create, fill out, and compress PDFs for secure document sharing and faster uploads to patient portals. Sending forms via links or embedding them on websites simplifies data collection and improves the patient experience.
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Patient intake forms
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Appointment schedules
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Prescription forms
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Consent forms
Finance
Financial analysts and accountants use pdfFiller to create, customize, and share financial documents. With the PDF compress feature, finance professionals can quickly convert documents in the right format, share and conveniently store them in the cloud.
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Financial statements
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Tax forms
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Invoices
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Expense reports
Sales
Sales teams use pdfFiller’s compress feature to easily share proposals and contracts with clients. Sharing documents via link or email helps speed up communication, close deals faster, and boost productivity.
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Sales proposals
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Quotation forms
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Order forms
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Customer feedback surveys
Insurance
Insurance agents use pdfFiller to edit and compress documents like policy files, claims forms, and client onboarding materials for easy sharing and secure storage. With pdfFiller, they can share insurance documents via link or email to get them signed in seconds.
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Insurance policy documents
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Claim forms
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Risk assessment reports
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Client onboarding documents
Why compress documents with pdfFiller?
Optimize quality at the right file size
pdfFiller offers three compression settings and shows the estimated file size. Need a smaller file? Simply bump up the compression level.
Convert & compress in one go
Convert your PDFs to Word, Excel, PPT, JPEG, or PNG and compress them in one step. This lets you get documents in the right format and size without juggling multiple tools.
Export & share with ease
Download your compressed file, send it directly to cloud storage, or share it with others in seconds. With pdfFiller, you don't have to manually move files whenever you need to compress or convert a document.
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I have been using pdf filler for approximately 2 years now - and I can't say enough good things about it. It's very easy to convert documents into a fillable format.
What do you dislike?
I can't think of anything - as the features I've currently used meets my expectations.
What problems are you solving with the product? What benefits have you realized?
It allows me to convert any document into a professional fillable document.
I have been using pdf filler for approximately 2 years now - and I can't say enough good things about it. It's very easy to convert documents into a fillable format.
What do you dislike?
I can't think of anything - as the features I've currently used meets my expectations.
What problems are you solving with the product? What benefits have you realized?
It allows me to convert any document into a professional fillable document.
Meralis Acevedo
Meralis AcevedoI was able to find the form I needed. The only thing is that it was a little difficult figuring out how to use all the features it has. How to modify the text was not something I was able to do through erasing. Maybe using PDFfiller more often will help me maneuver the site with time.
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So far so good. Actually of every editable pdf or doc app out there, this one has by far so many options you can choose from to suit your editing needs
Elisa stepped right into action and helped me with my accounting issue. It is so nice to be able to have an account services individual help a customer with ease. This is a very rare occasion especially during this pandemic. Thank you Elisa!!!!!
What do you like best?
Easy to use and effective. PDF Filler has decreased the amount of redundant work for me.
What do you dislike?
Sign now sometimes has a glitch and I have to redo the task
What problems are you solving with the product? What benefits have you realized?
Tracking documents. Customers say "I didn't know" or "I didn't get it", I can view the audit log.
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How do I reduce the MB size of a JPEG?
How to reduce JPEG file size on Windows Open the JPEG file with a double click or Right-click file > Open With > Photos. Click the three dots in the top right corner and select Resize. Choose the recommended settings or Define custome dimentions to resize the JPEG file manually.
How can I make a photo 15 MB?
If you want to make an exactly 15 MB file, then you have a number of choices: Reduce the pixel count by appropriate cropping losing picture area. reduce the color depth. reduce the file size by file compression. Reduce the picture pixel count by decimation/averaging/interpolation process while keeping the same view content.
How do I reduce the MB size of a photo?
The Photo Compress app available at Google Play does the same thing for Android users. Download the app and launch it. Select the photos to compress and adjust the size by choosing Resize Image. Be sure to keep the aspect ratio on so the resizing doesn't distort the height or width of the photo.
How do I make a picture 15 MB?
If you want to make an exactly 15 MB file, then you have a number of choices: Reduce the pixel count by appropriate cropping losing picture area. reduce the color depth. reduce the file size by file compression. Reduce the picture pixel count by decimation/averaging/interpolation process while keeping the same view content.
How do I reduce the size of a photo to 10 MB?
How to reduce the image size in KB/MB? To reduce the image size in KB or MB online, first upload it to ResizePixel's website. Enter a desired file size and select the corresponding unit of measurement (KB or MB). Then proceed to Download page to get the image file.
How do I change the MB of a photo?
Compress a picture 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.
What size is 10mb?
Table of approximate file sizes bytesin units5,000,0005 MB10,000,00010 MB25,000,00025 MB100,000,000100 MB12 more rows
How do I change the MB size of a picture smaller?
Compress the Image Size with Online Tools Use TinyPNG to Compress Images. Use Image Smaller to Reduce the Image File Size. Use Kraken to Reduce the Picture File Size. Use Paint to Change an Image's Resolution. Use Shutterstock to Reduce an Image's Size.