ComPDF VS KeptPDF
Compare ComPDF VS KeptPDF and see what are their differences
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ComPDF
PSPDFKit
PDFTron
Foxit PDF SDK
IronPDF
Apryse
PDFDancer
Adobe
KeptPDF
Smallpdf
iLovePDF
Sejda
Adobe Acrobat DC
CompilaPDF
FoxyUtils Online PDF Tools
OnDevicePDF
ComPDF, powered by KDAN (TPEx: 7737), is built on the vision of โLeading the Intelligent PDF Era with Continuous Innovationโ. ComPDF offers enterprises three main components: ComPDF SDK, ComPDF Cloud, and ComPDF AI.
ComPDF SDK is highly compatible with web, server, desktop, and mobile platforms, seamlessly integrating with various development frameworks. It provides advanced PDF capabilitiesโincluding generation, editing, conversion, and signingโempowering developers and enterprise users to enhance their PDF processing capabilities.
ComPDF Cloud delivers a secure, stable, and efficient service environment, simplifying enterprise document processing and business integration workflows. With the flexibility to use either Open API calls or private deployment, enterprises can perform a wide range of document processing tasks, including PDF generation, editing, format conversion, OCR recognition, and data extraction.
ComPDF AI builds on this foundation by providing intelligent document processing capabilities, enabling automated data extraction, parsing, and knowledge management. Together, these components streamline workflows, improve operational efficiency, and accelerate enterprise digital transformation.
Low-code PDF solution on Make.com, zapier, etc.
Construction
Aviation
Manufacturing
Finance
Education
Printing
Healthcare
Government
Salesforce
Sharepoint
Onedrive
Teams
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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:
Who it is for: law firms, accounting practices, clinics, and anyone who shares documents they cannot afford to leak.
The core tools are free with no sign-up. Works offline as an installable app.
ComPDF KeptPDFKeptPDF'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.
I'm looking for PDF SDK for our app. ComPDFKit can meet all our needs for PDFs. Answer my questions on time. And they have detailed documents to guide our integration.
PSPDFKit - PSPDFKit is the best framework for working with PDF files. Our SDK provides first-rate PDF solutions for your application with features like annotating, signing, and form filling. We power successful projects for businesses across the globe.
Smallpdf - PDF document management and conversion suite
PDFTron - PDF components and tools.
iLovePDF - Premium online PDF tool set
Foxit PDF SDK - Foxit is the leading PDF SDK distributor for Desktop, Mobile & Web applications. We provide the best UX on all major platforms, including iOS, Android and Windows, with our PDF libraries
Sejda - Split, merge and other powerful PDF tools.