
Adobe Acrobat DC
iLovePDF
Smallpdf
PDF24 PDF Creator
PDF-XChange Editor
Sejda
PDF24
PDFsam Basic, a free, open source, multi-platform software designed to split, merge, extract pages, mix and rotate PDF files

NovoPsych
Clinical assessment tools for psychologists, therapists and occupational therapists. Send measures by secure link and review scored results, severity bands and reports.

Which is more popular?
Based on our record, PDFsam seems to be more popular. It has been mentioned 32 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | pdfsam.org | clientforms.app |
| Pricing | ||
| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of PDFsam yet.
Clinical assessment tools for psychologists, therapists and occupational therapists. Send measures such as the PHQ-9, GAD-7 and DASS-21 by secure link and get scored results, severity bands and reports ready to review. The catalogue also includes DSM-5 ADHD assessments and autism screening tools....
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
PDFsam is recommended for individuals and small businesses looking for an easy-to-use, cost-efficient PDF tool capable of handling everyday PDF manipulation tasks without the complexity or expense of more advanced software. It’s particularly suitable for users who require basic features and occasional PDF editing.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
How to Use PDFsam
More videos
No ClientForms.app 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 PDFsam and ClientForms.app.
ClientForms.app's answer:
Frontend: Next.js 15 (React 19), Tailwind CSS Backend: Supabase (PostgreSQL, Row-Level Security) Authentication: Clerk Payments: Stripe Hosting: Vercel (Sydney region) Database hosting: Supabase (Australian data residency)
ClientForms.app's answer:
Psychologists who assess ADHD and autism. Typically private practice, solo or small group (1-5 clinicians), currently using paper forms and spending hours on admin per assessment. They want something that works and is secure.
ClientForms.app's answer:
Neurodivergent-first design. Most digital forms just replicate paper online. ClientForms is built specifically for ADHD and autism patients - progress bars with time remaining (helps with time blindness), softer colours instead of harsh white, sticky headers so you always know where you are. The forms are designed to reduce anxiety and improve completion rates.
ClientForms.app's answer:
Most clinical software treats patients as an afterthought. ClientForms is designed specifically for neurodivergent users who are filling out the forms, progress indicators, time estimates, calmer colours, predictable layouts. One link, no signup required, works on any device. Patients just open and complete.
Share your experience with using PDFsam and ClientForms.app. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


This is a simple open source Java pdf editor. The basic version allows you to edit the content and structure of pdf documents. Builds of this version are available for Windows, MacOS and Linux. PDFsam Enhanced version...
We have no reviews of ClientForms.app yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


He shares insights into a few applications, like Hero (CAD application to calculate energy efficiency) and PDFSam (powerful and professional PDF editor). PDFSam had 100.000 downloads in April '24! - Source: dev.to / over 2 years ago
I find pdfsam to be the perfect offline tool for me on Windows. https://pdfsam.org And it's open source as well: https://github.com/torakiki/pdfsam. - Source: Hacker News / over 3 years ago
That might be fit for your purpose PDFSam. Source: over 3 years ago
Tracking ClientForms.app since Dec 2025.
When comparing PDFsam and ClientForms.app, you can also consider the following products.

Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
Compare Adobe Acrobat DC to PDFsam or ClientForms.app:

NovoPsych is a tool that is used for outcome monitoring via conducting psychological tests online.
Compare NovoPsych to PDFsam or ClientForms.app:


PDF document management and conversion suite
Compare Smallpdf to PDFsam or ClientForms.app:

Create PDF and convert documents to PDF for free with the free PDF24 PDF Creator.
Compare PDF24 PDF Creator to PDFsam or ClientForms.app:

The smallest, fastest, most feature-rich PDF editor/viewer available
Compare PDF-XChange Editor to PDFsam or ClientForms.app: