PDF Editor Alternatives
Most teams evaluating PDF tools need the same four things: text input, signatures, form fields, and page manipulation. The market ranges from heavyweight SDKs that cost $25K+/year to open-source viewers with no editing. This page compares 8 alternatives across integration effort, pricing, and feature set - so you can pick the right tool without sitting through 8 sales calls.
How They Compare
| Tool | Type | Integration | Starting price | Form filling | Signatures | BYOS | White-label | HIPAA |
|---|---|---|---|---|---|---|---|---|
| SimplePDF | Embeddable product | 1 line (iframe) | Free / $99/mo | Yes | Yes | Yes | Yes | Yes (client-side) |
| Adobe Acrobat Services | API + Embed SDK | Multi-step setup | Per transaction | API only | Via Acrobat Sign | No | Partial | Healthcare Shield add-on (Experience Platform only) |
| PSPDFKit (Nutrient) | SDK | npm + Document Engine | Quote-based | Yes | Yes | Via Document Engine | Yes | Server-side |
| Apryse (PDFTron) | SDK | npm + license key | Quote-based | Yes | Yes | Custom | Yes | Server-side |
| Foxit PDF SDK | SDK | Server + client setup | Quote-based | Yes | Yes | Custom | Yes | Server-side |
| PDF.js | Open-source viewer | npm + custom UI | Free | No | No | N/A | Yes | N/A |
| DocuSign | E-signature platform | API + templates | $25/mo per user | Limited | Yes | No | Enterprise only | BAA available |
| Anvil | PDF filling API | REST API | Per API call | API only | Yes | No | No | Server-side |
| pdfFiller | Consumer SaaS | Limited API | $8/mo per user | Yes | Yes | No | No | Server-side |
Detailed Comparisons
Adobe Acrobat Services
Adobe's PDF Embed API is free but read-only. Their PDF Services API handles server-side operations but requires orchestrating API calls and paying per-transaction. Best for teams already invested in the Adobe ecosystem that need document conversion and OCR alongside PDF viewing.
SimplePDF fits: If you need an embeddable editor with form filling and signatures, not just a viewer.
SimplePDF vs AdobePSPDFKit (Nutrient)
A powerful SDK with 17+ annotation types, real-time collaboration, and native mobile SDKs. Recently rebranded to Nutrient. Requires Document Engine for server-side features like BYOS. Best for teams that need advanced annotation and digital certificate support.
SimplePDF fits: If you need a working product without managing SDK infrastructure or Document Engine.
SimplePDF vs PSPDFKitApryse (PDFTron)
The most comprehensive document SDK on the market - 30+ file formats, CAD support, Office conversion. Used by 85% of Fortune 100. Best for enterprises that need multi-format support beyond just PDF.
SimplePDF fits: If you only need PDF editing and want to ship in days instead of months.
SimplePDF vs ApryseFoxit PDF SDK
Known for their desktop PDF editor, Foxit also offers a web SDK that relies on server-side rendering for high-fidelity output. Best for teams that need pixel-perfect rendering of complex PDFs.
SimplePDF fits: If you want client-side processing without server infrastructure.
SimplePDF vs FoxitPDF.js
Mozilla's open-source PDF viewer. Free, widely used, and fully customisable - but it's a viewer only. No text input, no signatures, no form submission. Teams often spend weeks building editing features on top of it.
SimplePDF fits: If you need editing capabilities, not just viewing.
SimplePDF vs PDF.jsDocuSign
The standard for legally binding e-signatures with ESIGN Act and eIDAS compliance. Envelope-based workflows, multi-signer routing, and deep integrations. Best for teams where the primary workflow is collecting legally compliant signatures.
SimplePDF fits: If your users need to fill and complete PDF forms, not just sign them.
SimplePDF vs DocuSignAnvil
An API-first platform for generating and filling PDFs programmatically. Great for fully automated workflows where no human review is needed. Also includes e-signature packets and template-based document creation.
SimplePDF fits: If you need a visual editor where users review and complete forms before submission.
SimplePDF vs AnvilpdfFiller
A consumer-facing SaaS for filling PDFs online with built-in templates and SendToSign workflows. Best for individuals and small teams that need a standalone PDF filling tool.
SimplePDF fits: If you need to embed a white-labelled PDF editor in your own product.
SimplePDF vs pdfFillerHow to Choose
Need native mobile SDKs?
Apryse, PSPDFKit, or Foxit
Need Office format support?
Apryse or Adobe
Need the fastest integration with form filling?
SimplePDF
Need e-signatures as the primary workflow?
DocuSign
Need a free viewer only?
PDF.js
Need programmatic PDF filling via API?
Anvil or SimplePDF
Need a consumer-facing free editor?
pdfFiller or SimplePDF
Why SimplePDF
One iframe, one line of code
Embed a full PDF editor in your app with a single script tag. No npm packages, no build steps, no server infrastructure.
Client-side processing
Documents never leave the browser. HIPAA-friendly by architecture - no server-side data exposure.
Transparent pricing
$99/mo for the Basic plan. No annual contracts, no quote-based pricing, no per-transaction fees. Cancel anytime.
Everything you need, nothing you don't
Form field auto-detection, signatures, BYOS (S3 & Azure), webhooks, white-label, and 100K+ users already served.
Got any questions?
What is the best embeddable PDF editor?
It depends on your requirements. For the fastest integration with form filling, signatures, and white-label support, SimplePDF embeds in one line of code. For advanced annotation (17+ types) and real-time collaboration, PSPDFKit or Apryse offer more features at higher complexity and cost. For e-signatures only, DocuSign is the industry standard.
How much do PDF SDKs cost?
Pricing varies widely. PDF.js is free (viewer only). SimplePDF starts at $99/mo with transparent pricing. DocuSign starts at $25/mo per user. Adobe charges per API transaction. PSPDFKit, Apryse, and Foxit use quote-based pricing that typically starts at $10K+/year for web-only licenses.
What is a client-side PDF editor?
A client-side PDF editor processes documents entirely in the user's browser - the PDF never leaves the device. This eliminates server-side data exposure, making it naturally HIPAA-friendly and GDPR-compliant. SimplePDF uses this architecture. Most SDKs (PSPDFKit, Apryse, Foxit) require server-side components for features like storage and collaboration.