
iLovePDF
Adobe Acrobat DC
Sejda
PDF24
CloudConvert
TinyWow
PDF24 - Online PDF Tools
PDF document management and conversion suite

ImageOptim
Caesium Image Compressor
Squoosh
ImageMagick
OptiImage
XnConvert
TinyPNG
FileOptimizer is a lossless file size optimizer supporting AIR, APK, APNG APPX, BMP, CBZ, DOCX...

Which is more popular?
Based on our record, Smallpdf should be more popular than FileOptimizer. It has been mentioned 38 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | smallpdf.com | nikkhokkho.sourceforge.io |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
FileOptimizer is recommended for individuals and organizations that need to optimize large collections of files for storage efficiency, web developers looking to enhance page load speeds by reducing image sizes, and those who regularly manage diverse file types and seek a straightforward optimization tool.
Walkthroughs and reviews on video.
smallpdf tutorial video
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Smallpdf and FileOptimizer. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Smallpdf is a well-known online PDF platform with a clean interface. It works entirely in the browser and integrates with Google Drive and Dropbox, making it convenient if you store files in the cloud. The free tier...
Users highlight Docpose.cloud’s reliability—no failed conversions even on rare formats. CloudConvert gets praise for quality tweaks but frustrates with daily resets. iLoveIMG is loved for extras like AI, but free...
Platforms like iLovePDF and Smallpdf are among the most popular choices. They do a decent job for simple PDFs, but I quickly realized a few issues:
We have no reviews of FileOptimizer yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


According to statistics from smallpdf.com, by 2025, there will be a massive 2.5 trillion PDF documents stored worldwide, and 290 billion new PDF documents will be created every year. - Source: dev.to / 10 months ago
Smallpdf [1] probably deserves a mention here. Not OSS and not self-hosted, but I‘ve used it occasionally and it has always worked really well. When I was running an agency, we inherited their first office – very cool folks. [1]... - Source: Hacker News / almost 3 years ago
And use this one to merge two single-page pdf to make a double side page. Source: almost 3 years ago
Check out FileOptimizer (https://nikkhokkho.sourceforge.io/static.php?page=FileOptimizer). - Source: Hacker News / almost 3 years ago
My favourite tool for one-off losless image optimization is FileOptimizer, each asset is processed with several size optimization libraries. https://nikkhokkho.sourceforge.io/static.php?page=FileOptimizer. - Source: Hacker News / about 4 years ago
Good stuff. I use optipng and other things via https://nikkhokkho.sourceforge.io/static.php?page=FileOptimizer before I upload any image to anywhere where others might download them. - Source: Hacker News / about 4 years ago
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