Free Online
Image & PDF Tools
Compress images, resize photos, reduce PDF file size, and convert formats for the everyday jobs that slow people down: storefront uploads, email attachments, job portals, support docs, and shared files that are simply too large.
Built for real file-work problems
Slim Files is designed for the practical jobs that create file bottlenecks: compressing oversized images before publishing, reducing PDF size for forms and portals, combining scans into a single document, and converting assets into the format a workflow actually needs.
Instead of trusting browser-reported file metadata blindly, the app validates uploads by detected content before processing begins. That makes the workflow more reliable for ordinary users and for teams that need repeatable results, clear limits, and predictable cleanup behavior.
The goal is simple: help you get smaller, cleaner, more shareable files without introducing a complicated desktop workflow just to handle common image and PDF tasks.
Public operator identity
Online Data Network LLC has published its support, policy, and About pages so visitors can see who runs the site.
Workflow guidance is live
13 editorial guides and 6 core tools are publicly linked together for real task-based navigation.
Support is reachable
Questions and bug reports can be sent to support@slimfiles.net instead of disappearing into an anonymous widget.
Start with the tools people use most
Image Compressor
Reduce image file size online with adjustable compression, secure server-side validation, and automatic cleanup.
Open workflowPDF Compressor
Reduce PDF file size online for forms, email, and storage with secure processing and practical file-size savings.
Open workflowJPG to PDF
Combine JPG and PNG files into a clean PDF online for scans, portfolios, forms, and sharing.
Open workflowPick the workflow that matches the job you actually need to finish
Most visitors are not looking for a general-purpose file lab. They are trying to solve one practical problem quickly: make an image smaller, resize a product photo, convert a WebP for reuse, compress a PDF for a portal, or merge a stack of images into a document. These shortcut links make those common paths easier to discover from the homepage and give crawlers a clearer map of the product structure.
Compress images before upload
Shrink large JPG, PNG, and WebP files before publishing to a CMS, sending them in email, or listing products on a storefront.
Resize images for exact dimensions
Prepare website banners, marketplace product photos, and social media visuals without switching to desktop editing software.
Convert formats cleanly
Move between JPG, PNG, and WebP when a platform or workflow needs a specific output type or transparency behavior.
Reduce PDF size for forms and portals
Make image-heavy PDFs easier to upload to job portals, intake forms, tax systems, and email clients with tight attachment caps.
Combine images into one document
Turn photo scans, receipts, and screenshots into a single PDF that is easier to submit, archive, or forward.
Extract PDF pages as images
Break a PDF into JPG pages when you need previews, social-ready assets, or a quick way to reuse individual pages.
Read the workflow before you upload the file
Slim Files is being built as both a utility product and a reference library. The guides section now covers image formats, compression tradeoffs, portal upload limits, WordPress workflows, marketplace prep, and device-specific fixes so visitors can learn the workflow before they start changing files.
13+
Guides live
6
Core tools
JPG vs PNG vs WebP: which image format should you actually use?
If you only have a few seconds, use JPG for photos, PNG for screenshots and transparency, and WebP for modern web delivery when you want smaller files at the same visual quality. This version goes deeper on practical defaults, real file-size ranges, and copy-paste settings you can use without guessing.
PDF Upload Limits by Portal: 13 Real Systems and the File Size Targets That Actually Work
If a portal says your PDF is too large, the right fix depends on the system. This guide maps 13 real portals and platforms to their documented file size caps, shows what happens when you exceed them, and explains how to choose the right compression target for each category.
When should you resize an image instead of compressing it?
A lot of people reach for compression when the real issue is oversized dimensions. This guide turns that into a clearer decision sequence so you can tell whether to resize, compress, or combine both without damaging the image.
Reduce File Size for Job Application Portals: ATS Limits, Parser Quirks, and Why Your Resume Can Fail Without an Error
A resume can fail long before a recruiter reads it. Some ATS platforms block oversized files at upload, some accept the file but fail parsing later, and some behave differently depending on how the employer configured the portal. This guide focuses on the real ATS mechanics behind those failures so you can choose the right file size, format, and fallback path before you hit Apply.
Start with format decisions, upload-limit troubleshooting, or marketplace image prep depending on the job you are trying to finish.
Teams, creators, and everyday document work
Slim Files is a strong fit for marketing teams preparing lighter web assets, operations teams handling form and portal uploads, sellers standardizing marketplace images, and anyone who needs to make files easier to send without learning a new toolchain first.
Common tasks people search for most
Some visitors arrive looking for a named tool, while others search for a very specific task such as compressing a JPG, shrinking a PDF for an upload limit, or resizing an image for a platform. These direct page links make those routes easier to find and strengthen the internal path between the homepage, the canonical tool pages, and the supporting guides.
Built as a product and a reference site
Slim Files now includes public support and policy pages, an About page tied to Online Data Network LLC, a service overview, and a growing guides section that explains the choices behind file workflows instead of assuming every visitor already knows the right settings.
That matters because good file handling is rarely just one button. People often need help choosing a format, understanding quality tradeoffs, or deciding whether a PDF should be compressed or rebuilt. The site is being shaped to answer those questions more directly, with public editorial pages and support channels that are easy to verify before uploading anything.
About Slim Files
Read how the product is being built and what users should expect from its current scope.
Guides
Browse practical articles on image formats, upload limits, ecommerce image prep, and workflow choices.
Privacy Policy
Review the live data-handling and temporary file-processing explanation.
Contact Support
See the public support route for workflow questions, bug reports, and account issues.