
CloudFlare
KeyCDN
CDN77
Akamai
Fastly
Sucuri
Google Cloud CDN
Amazon CloudFront is a content delivery web service.

Smallpdf
iLovePDF
Sejda
Adobe Acrobat DC
PDFStaple
PDF24
PDF Expert
Redact, edit, OCR, and sign PDFs entirely in your browser. The file never leaves your device. Free, no account needed.

Which is more popular?
Based on our record, Amazon CloudFront seems to be more popular. It has been mentioned 87 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | aws.amazon.com | keptpdf.com |
| Pricing | — | |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Amazon CloudFront yet.
KeptPDF is a PDF toolkit that runs entirely in your browser. Nothing uploads: every tool runs on your own device, so the document never touches a server. What it does: Redaction that auto-detects names, SSNs, phone numbers, addresses, and dates, then removes the underlying text instead of drawing...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
No analysis of KeptPDF yet.
Walkthroughs and reviews on video.
JioSaavn Uses Amazon CloudFront to Stream Music and Video to Millions of Subscribers Daily
No KeptPDF videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Amazon CloudFront and KeptPDF.
KeptPDF's answer:
KeptPDF runs entirely in your browser. Your file, and the text inside it, never leaves your device. Not to an AI, not even to us. You can open your browser's network tab and watch: the document bytes never go out.
Most online PDF tools upload your file to a server first, and some "AI redaction" services quietly send your document text to a third-party model. That is the exact risk people are trying to avoid when they redact something.
KeptPDF also does true redaction. The text is removed from the file, not covered with a black box you can copy out later. Every redaction produces a verification certificate you can share with the file.
KeptPDF's answer:
Three reasons.
Privacy you can verify, not just a promise. Processing happens locally in the browser, so there is no upload step to trust. We do send anonymous usage counts for quota, and we say so plainly, but never your document.
Real redaction with proof. Removed text is permanently gone, and you get a certificate showing the file was checked for leftover extractable text. Automated detection cannot catch everything, so a final human review is still your job, and the tool says that too.
It works on a phone. Most PDF suites assume a desktop. KeptPDF was built and used on a phone first, so redacting a document while you are standing in a hallway actually works.
KeptPDF's answer:
Anyone who has to hand a document to someone else and needs the sensitive parts gone first.
In practice that is solo attorneys and small law firms, accountants and tax preparers, healthcare and records staff handling requests, HR teams, and individuals dealing with their own medical, legal, or financial paperwork.
The common thread is not an industry. It is a person who cannot upload a confidential file to a random website, and who does not have an enterprise IT budget to solve it.
KeptPDF's answer:
A family member got seriously ill. We spent most days at the hospital, and straight answers were hard to come by, so we leaned on AI tools to make sense of the records, notes, and lab results.
But you cannot paste a medical record into an AI chat. You have to strip the names, the ID numbers, the diagnoses first. And almost every tool we found either wanted to upload the whole file to a server, or "auto-redacted" by sending the document text to an online AI. That was the exact thing we were trying to avoid.
Most of this was happening on a phone, at a bedside. So I built the tool I needed: redaction that runs on the device, works on mobile, and never sends the file anywhere. That turned into KeptPDF, which is now a full PDF suite with over 20 tools, all local-first.
KeptPDF's answer:
The app is plain JavaScript with no front-end framework, which keeps it fast and keeps the code auditable.
PDF work happens in the browser using pdf.js for rendering and pdf-lib for writing. Text recognition uses Tesseract running as WebAssembly. Password and encryption handling uses a WebAssembly build of qpdf. It is a Progressive Web App, so it installs and works offline.
The thin server side is Node on Vercel, with Postgres for accounts, Stripe for billing, and Resend for email. None of those ever see a document.
KeptPDF's answer:
KeptPDF is early and independent, and we do not publish customer names. The product is privacy-first by design: we never see your documents, and we do not track who our users are or what they work on. Publishing a client list would sit badly next to that.
The user base today is mostly solo attorneys, small firms, accountants, and individuals handling their own records.
Share your experience with using Amazon CloudFront and KeptPDF. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Operated by Amazon Web Services, Amazon Cloudfront had a beta launch in 2008. AWS then decided to make Cloudfront part of their free tier offerings in 2014. As of current writing, Cloudfront boasts of more than 310...
Being one of the major internet companies that operates almost worldwide, it goes without saying that Amazon also offers a CDN with Amazon Cloudfront. The focus is on the Amazon Backbone network and developer...
Amazon CloudFront is a CDN service that is part of the Amazon Web Services (AWS) cloud platform. CloudFront integrates with other AWS services, such as S3, EC2, Lambda, and Media Services, to deliver web content and...
We have no reviews of KeptPDF yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Using a Content Delivery Network (CDN) like CloudFront to serve static assets faster. - Source: dev.to / 5 months ago
Semantic Caching: Cache similar queries' results using result fingerprinting. Edge caching via Amazon CloudFront for reduced latency. - Source: dev.to / 5 months ago
CloudFront may sound like Cloudflare, but it is an unrelated AWS service (https://aws.amazon.com/cloudfront/) (Disclaimer: I work for Cloudflare, which is not CloudFront). - Source: Hacker News / 5 months ago
Tracking KeptPDF since Aug 2026.
When comparing Amazon CloudFront and KeptPDF, you can also consider the following products.

Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.
Compare CloudFlare to Amazon CloudFront or KeptPDF:

PDF document management and conversion suite
Compare Smallpdf to Amazon CloudFront or KeptPDF:

KeyCDN is a high-performance Content Delivery Network (CDN). Lowest price globally at $0.04/GB with HTTP/2 Support and free Origin Shield.
Compare KeyCDN to Amazon CloudFront or KeptPDF:


Content Delivery Network - website speed acceleration with CDN77. 28+ PoPs, Pay-as-you-go prices, no commitments.
Compare CDN77 to Amazon CloudFront or KeptPDF:
