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CoolUtils Online PDF Merger
What it is
CoolUtils Online PDF Merger combines multiple files into one PDF in a browser, without signup or software installation. The free tool accepts up to five files per pass, with a 50 MB limit for each file. The upload-slot order determines the sequence of pages in the merged document. JPG, PNG, and GIF images are accepted too, with each image becoming a PDF page. The online plan costs nothing. Its primary platform is web, and listed platform availability also includes Android, iOS, Linux, macOS, and Windows. CoolUtils says uploads and downloads use encrypted SSL/TLS connections and are processed in isolated environments. It says uploaded documents are used for the merge and are not stored afterward, and separately states that uploaded files and converted results are deleted from its servers within 24 hours. The online page does not list integrations, batch merging, or page selection. CoolUtils directs users who need command-line automation or recurring, folder-level work to its desktop PDF Combine product.
For and against
For
- No signup or installation required.
- Accepts up to five files per pass.
- Supports PDF, JPG, PNG, and GIF inputs.
- Upload order sets the final page sequence.
Against
- Maximum 50 MB per file.
- No batch merging or page selection listed.
- Online page lists no integrations.
The verdict
The online merger covers straightforward, small-batch PDF assembly and can turn common image files into pages. Its five-file and per-file size limits matter for larger jobs.
Who it suits
It suits people who need to combine a small number of files in a browser for a one-off task. Users needing recurring or folder-level work, or command-line automation, are directed to the desktop product.
Plans and prices
Online PDF Merger Free
Up to 5 files per pass · 50 MB per file · PDF, JPG, PNG and GIF inputs · no signup
Read 15 Oct 2026 · coolutils.com
PDF Combine Personal License
Personal, educational or nonprofit use · up to 2 computers for one user · Windows
Read 15 Oct 2026 · coolutils.com
PDF Combine Commercial License
Commercial use for 1 person
Read 15 Oct 2026 · coolutils.com
PDF Combine Server License
One Windows server · SDK · ActiveX included
Read 15 Oct 2026 · coolutils.com
PDF Combine Site License
Commercial GUI and command-line use for up to 50 employees
Read 15 Oct 2026 · coolutils.com
PDF Combine Royalty-free License
Redistribution inside an end-user product · 1 developer · 1 derived-work location
Read 15 Oct 2026 · coolutils.com
Online PDF Merger
Up to 5 files per pass · 50 MB each · accepts PDF, JPG, PNG, GIF
Read 4 Oct 2026 · coolutils.com
On the record
- Batch processing
- PDF Combine can process multiple files or whole folders in batch jobs.coolutils.com · read 15 Oct 2026
- Browser platforms
- The online merger is stated to work in modern browsers on Windows, Mac, Linux, iOS and Android.coolutils.com · read 15 Oct 2026
- Command line
- CoolUtils documents command-line operation and provides a ready-to-use BAT file from GUI settings.coolutils.com · read 15 Oct 2026
- Company capabilities
- LinkedIn describes Softplicity as making audio, image, document, PDF and mail converters and SDKs for different platforms.linkedin.com · read 15 Oct 2026
- Company founding
- LinkedIn lists Softplicity as founded in 1998.linkedin.com · read 15 Oct 2026
- Company history
- CoolUtils says it has operated online since 2003 and supports more than 1,400 file types across its tools.coolutils.com · read 15 Oct 2026
- Company size
- LinkedIn lists Softplicity, the CoolUtils company, as self-owned with 2–10 employees.linkedin.com · read 15 Oct 2026
- Compliance and certifications
- CoolUtils states its GDPR and US privacy-law commitments and says it does not currently advertise formal ISO 27001 or SOC 2 certification.coolutils.com · read 4 Oct 2026
- Data handling
- CoolUtils says online uploads are used for processing and are not stored or shared afterward.coolutils.com · read 15 Oct 2026
- Desktop features
- The desktop product provides clickable bookmarks and tables of contents, cover pages, blank-page deletion and blank-page insertion for duplex printing.coolutils.com · read 15 Oct 2026
- Desktop scope
- The Windows desktop edition merges folders and hundreds of files without uploading them to a third-party server.coolutils.com · read 15 Oct 2026
- Documentation
- CoolUtils provides a PDF Combine guidance manual covering workflow and PDF security settings.coolutils.com · read 15 Oct 2026
- File limits
- The online tool accepts up to five files per pass, with a 50 MB limit per file.coolutils.com · read 4 Oct 2026
- File order
- The merged document follows the order of the upload slots from top to bottom.coolutils.com · read 4 Oct 2026
- File ordering
- Output order follows the upload slots from first to last.coolutils.com · read 15 Oct 2026
- Founder fact
- A LinkedIn profile for Alexander Buzaev identifies him as CoolUtils founder and CEO and says he started the company in 2003.ge.linkedin.com · read 15 Oct 2026
- Image input
- The upload slots also accept JPG, PNG, and GIF images, with each image becoming a page in the merged PDF.coolutils.com · read 4 Oct 2026
- Image inputs
- The web merger accepts JPG, PNG and GIF images and turns each image into a page in the output PDF.coolutils.com · read 15 Oct 2026
