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PDF PHP Libraries / PDF PHP SDKs by ▷ setasign.com — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Software And Applications →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
websupergoo.com ↗	67 match shared topic	.NET Components. ABCpdf .NET for PDF and HTML Conversion. ImageGlue .NET for Image Manipulation.	en	software-and-applications	robotsllmsaihumans	emailphone	none
grahl-software.com ↗	67 match shared topic	Annotate, Edit and Comment PDF Files. Open any PDF file, add annotations and save all back to PDF in one single step. For desktop computers and Tablet PCs. - PDF Annotator	en	software-and-applications	robotsllmsaihumans	emailphone	none
pdfannotator.com ↗	67 match shared topic	PDF Annotator - Annotate, Edit, Comment & Handwrite on PDF	en	software-and-applications	robotsllmsaihumans	emailphone	none
ascompsoftware.com ↗	67 match shared topic	ASCOMP - Backup, Synchronization & PDF Software	Germany~ en	software-and-applications	robotsllmsaihumans	emailphone	none
pdf2go.com ↗	67 match shared topic	Online PDF Converter - Edit, rotate, and compress PDF files	en	software-and-applications	robotsllmsaihumans	emailphone	none
cal.com ↗	61 match shared topic	Cal.com \| Scheduling Software for Online Bookings	en	software-and-applications	robots llmsaihumans	emailphone	none
easy.co ↗	61 match shared topic	Unified Commerce Solution \| EasyStore	Colombia en	software-and-applications	robotsllmsaihumans	emailphone	none
cs-cart.com ↗	61 match shared topic	CS-Cart eCommerce Software for Marketplaces and Stores	en	software-and-applications CS-Cart	robotsllmsaihumans	emailphone	none
wolfram.com ↗	61 match shared topic	Wolfram: Delivering the Computational Future	en	software-and-applications	robots llmsaihumans	emailphone	none
cincsystems.com ↗	61 match shared topic	Community Association Management Software - CINC Systems	en	software-and-applications HubSpot	robotsllmsaihumans	emailphone	none
lumistry.com ↗	61 match shared topic	Pharmacy Patient Engagement & Communication Software \| Lumistry	en	software-and-applications WordPress	robots llmsaihumans	emailphone	none
altumcode.com ↗	61 match shared topic	Self Hosted PHP Scripts - AltumCode	en	software-and-applications	robotsllmsaihumans	emailphone	partial · 8
townsq.io ↗	61 match shared topic	HOA Software by TownSq \| Smart Community Management App	en	software-and-applications	robotsllmsaihumans	emailphone	none
dyne.org ↗	61 match shared topic	Digital Community and Free Software Foundry	en	software-and-applications WordPress	robots llmsaihumans	emailphone	none
ilovepdf.com ↗	61 match shared topic	iLovePDF \| Online PDF tools for PDF lovers	en	software-and-applications	robotsllmsaihumans	emailphone	none
abantecart.com ↗	61 match shared topic	AbanteCart - Free Open Source Ecommerce Solution	en	software-and-applications	robotsllmsaihumans	emailphone	none
apptimiza.com ↗	61 match shared topic	Welcome - Apptimiza \| Mobile Apps, SaaS & Digital Solutions	en	software-and-applications WordPress	robotsllmsaihumans	emailphone	none
allyant.com ↗	61 match shared topic	Digital & Web Accessibility Solutions for ADA Compliance	en	software-and-applications WordPress	robots llmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.