Softwr

Productivity · head to head

BoldSign vs Nitro PDF

BoldSign logo

BoldSign

Productivity

eSignature API and app for developers and teams

From
Free
Rated
-
Full reviewWebsite
Nitro PDF logo

Nitro PDF

Productivity

Edit, convert, secure, and sign PDF with annotation, OCR, and more

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only BoldSign has a free tier, so it costs nothing to try first.
  • Each has a real cost: BoldSign premium plan: additional envelopes cost $0.50 each after 250/month limit; Nitro PDF specific per-seat pricing is not published; must contact sales for individual plan pricing and volume discounts
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which BoldSign and Nitro PDF actually diverge.

Attributes where BoldSign and Nitro PDF differ
AttributeBoldSignNitro PDF
Starting priceFreeOn request
Pricing modelsubscriptionquote
Free tierYesNo

Identical on both: platforms (Web), user rating (Not yet rated), category (Productivity).

What people use each for

The jobs each tool is most often brought in to do.

BoldSign

  • eSignature automationnot Nitro PDF
  • Contract signingnot Nitro PDF

Nitro PDF

  • PDF creation, editing, annotation, and form filling for document workflowsnot BoldSign
  • E-signature workflows and document sending through Nitro Signnot BoldSign
  • Enterprise document management with compliance featuresnot BoldSign

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

BoldSign

  • Premium plan: additional envelopes cost $0.50 each after 250/month limit
  • Monthly billing costs 60-85% more than yearly billing (no 40% discount)
  • Enterprise API requires minimum $30/month

Nitro PDF

  • Specific per-seat pricing is not published; must contact sales for individual plan pricing and volume discounts
  • SSO and enterprise features (Azure Information Protection) are limited to Plus tier, not available in Standard
  • Plans support up to 20 licenses online; teams needing 20+ users must contact sales

Pricing, plan by plan

BoldSign

Free
  • EssentialFree
    • 25 envelopes/month
    • 2 templates
    • No additional users
  • Growth$5/month yearly
    • 50 envelopes/month
    • 10 templates
  • Business$15/month yearly
    • Unlimited envelopes
    • Unlimited templates
    • SSO
  • Premium$99/month yearly
    • 250 envelopes/month
    • Unlimited users

Nitro PDF

On request

No published plan breakdown. See the Nitro PDF review.

Which should you pick?

Choose BoldSign if

  • You want to start without paying.
BoldSign review

Choose Nitro PDF if

Nothing in the data separates Nitro PDF from BoldSign on the points above - pick on price and on how each one feels to use.

Nitro PDF review

Questions people ask

Is BoldSign or Nitro PDF better?
Neither clearly leads. BoldSign starts at Free and Nitro PDF at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, BoldSign or Nitro PDF?
BoldSign has a free tier; the other does not. Paid plans start at Free for BoldSign and On request for Nitro PDF.
Does BoldSign or Nitro PDF run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use BoldSign for free?
Yes. BoldSign has a free tier, so you can try it without paying. Nitro PDF starts at On request.
What is BoldSign best used for?
BoldSign is most often used for esignature automation, contract signing. Of those, esignature automation and contract signing are not what Nitro PDF is typically brought in for.

Answered from the vendors’ own pages

BoldSign: Does BoldSign offer a free plan?

BoldSign's Essential plan is free and includes 25 envelopes per month, 2 templates, and basic features like audit trails and authentication.

Source
Nitro PDF: What are the main Nitro PDF plans and their pricing?

Nitro offers Standard and Plus tiers for PDF tools, plus Nitro Sign for e-signatures. Standard is an annual subscription with unlimited users and basic PDF features. Plus adds SSO, domain control, and Azure Information Protection. Specific pricing requires contacting Nitro sales. A 14-day free trial is available without a credit card.

Source
BoldSign: How much does the BoldSign Growth plan cost?

The Growth plan costs $5 per month per user with annual billing or $15 per month per user with monthly billing, including 50 envelopes/month per user.

Source
Nitro PDF: What is the difference between Nitro PDF Standard and Plus?

Nitro PDF Standard includes core PDF creation, editing, annotation, OCR, AI tools, and team management. Plus adds enterprise security features including single sign-on (SSO), domain control, Azure Information Protection, Nitro Analytics, and a dedicated customer success manager for eligible customers.

Source
BoldSign: What are the overage fees for BoldSign's Premium plan?

The Premium plan includes 250 envelopes per month for $99-$138/month, with additional envelopes charged at $0.75 per envelope.

Source
Nitro PDF: Is there a perpetual license option for Nitro PDF?

Yes. Nitro PDF Classic is a one-time purchase for a 3-year license at a fixed price (not published online). It runs on Windows desktop only and includes core PDF tools. The Standard and Plus tiers are annual subscriptions.

Source
BoldSign: How much does BoldSign charge for API access?

BoldSign's Enterprise API costs $0.75 per envelope with a minimum charge of $30/month and includes 40 envelopes and 2 application users.

Source
Share

Related pages

More on BoldSign

More on Nitro PDF

Keep looking

Other head to heads