Bring it together
Merge PDF
Combine multiple PDFs into one organized document. Put every file in the right order.
Merge PDFSMALL TASKS. A LIGHTER DAY.
Merge and compress PDFs.
Keep work moving.
Combine PDF files in the right order or reduce PDF size for sharing—directly in your browser, with clear choices at every step.
Free to use
No sign-up
Files stay on your device
Lighten the load
Compress PDF
Make your PDFs easier to email, upload and share. Choose the balance that works for you.
Compress PDFA little less friction
Practical PDF tools for everyday document work.
The report that needs one last attachment. The scan that’s too big to email. A simpler way to get them out the door.
Your files stay yours
Your PDFs are processed on your device. No document uploads, no cloud copies to keep track of.
Straight to the useful part
Choose a tool, select your files and get to work. No account to create or software to install.
A little clarity goes a long way
Understand your options, see the actual result and download only when you’re ready.
THREE SIMPLE STEPS
From files to finished.
01 /
Choose your tool
Bring documents together with Merge PDF, or reduce file size with Compress PDF.
02 /
Make it yours
Choose files from your device. Arrange their order or select a compression setting.
03 /
Download and carry on
Check the result, save your new PDF and get back to the work that matters.
ONE FILE. EVERYTHING IN ORDER.
A complete document.
A clearer story.
Bring a report and its appendices together. Bundle invoices by date. Keep an application and its supporting documents in one place.
- Arrange whole PDFs before merging
- Keep the original page content and sizes
- Download one easy-to-share document
LESS SIZE. EASIER SHARING.
Make room for
what matters.
Large scans and image-heavy PDFs can get in the way of a simple upload. Try text-preserving optimization, or choose image-based compression when a smaller visual copy is what you need.
See the actual size difference. Keep the original if compression doesn’t help. No promises of a magic percentage.
Find your PDF’s smaller size
Your documents. Your device.
Your files are processed directly in your browser. They are not uploaded to our server. You choose what to open and what to save.
At your desk or on the go. Use a recent desktop, tablet or mobile browser. Large PDFs work best on a desktop.
GOOD QUESTIONS
A few things worth knowing.
What can I do with PDFOnlineS?
Combine multiple PDFs into one with Merge PDF, or try reducing one PDF’s file size with Compress PDF. Those are the two tools available here.
Are these PDF tools free?
Yes. Both tools are free to use without an account. Processing limits protect your browser from unusually large jobs; they are explained next to each tool.
Do my documents leave my device?
The tools read and process your selected PDFs in this browser tab. There is no document upload endpoint, and your PDF bytes are not sent to our server.
Will compression keep my text selectable?
Choose Preserve text to rewrite the PDF without converting its pages to images. Balanced and Strong rebuild pages as images, so selectable text, hyperlinks and interactive features are lost. You must confirm that tradeoff before using those modes.
Can I use PDFOnlineS on a phone?
Use a recent browser with support for JavaScript and local file selection. The file-order buttons work with touch. Large documents need more memory, so a desktop browser is usually a better choice for heavy jobs.
What if a PDF cannot be made smaller?
We compare the actual output bytes with the original. If the result is larger or unchanged, we say so and keep the original available. We never claim a saving that did not happen.
THE PDF NOTEBOOK
A little guidance. A lot less guesswork.
Your next PDF task, simplified.
Two useful tools. No account. Everything happens in your browser.
UNDERSTAND THE JOB
Two PDF tasks, with the right expectations
PDFOnlineS focuses on two common document jobs: combining finished PDF files into one record and reducing a PDF when a destination has a size limit. The tools show what they can do and describe the tradeoffs before you download anything.
When to merge PDFs
Use Merge PDF when the reader needs a complete package: a report with appendices, an application with evidence, or a set of invoices. The order you choose becomes the reading order in the new file.
When to compress a PDF
Use Compress PDF when a file is difficult to email, upload, or store. Start with text-preserving compression; choose image-based compression only when a visual copy is appropriate.
A quick check before you share
- Choose the tool that matches the task, rather than changing a document unnecessarily.
- Check the downloaded PDF before you share it.
- Keep the original file when the output will be submitted or archived.