Tamper-evident.
Every signed PDF is cryptographically sealed. Change one character afterward and the signature breaks.
sign multiple purchase agreements
Batch sign purchase agreements in seconds
Purchase agreements repeat the same approval pattern: buyer, seller, initials, addendum, repeat. PDFBatchSigner does the repeat work in one pass.
No account. No subscription. No server.
Live demo — Add documents to see each file auto-matched to a template, then sign the batch. Nothing leaves this page.
The specific problem
Purchase Agreements usually means purchase agreement, counteroffer, addendum, buyer acknowledgment, and seller acknowledgment. The names change. The signature work does not.
That is why this page exists for sign multiple purchase agreements, not for generic PDF signing. This is for the stack, the repeat fields, and the moment where one-by-one signing stops making sense.
How it works for purchase agreements
01
Template the repeat spot.
Mark agreement and addendum signature blocks on a sample PDF. Keep the template for the next batch.
02
Drop the stack.
Add the folder of PDFs. PDFBatchSigner looks for the same form structure and places the signature where it belongs.
03
Review, then seal.
Templates keep the signature tied to the form, not a fragile coordinate. One look, one click, tamper-evident output in the folder you choose.
Real signatures, not just pictures of one.
Shows in any reader.
This is a verifiable PDF signature built into the file, not an image pasted on a page.
Really you.
Use a device-generated key protected by Secure Enclave when available, or import a supported .p12 identity.
Two ways to sign, your choice.
Default
Device-protected key
PDFBatchSigner signs with a key generated on your device. It uses Secure Enclave when available and a Keychain-protected fallback otherwise.
Advanced
Bring your own .p12
Already have a signing certificate from a trusted authority? Import your .p12 and your signatures carry your verified identity, recognized in Adobe Acrobat and beyond.
Purchase agreement pages to check
- Main signature page
- Counteroffer page
- Inspection addendum
- Financing addendum
- Acknowledgment pages
FAQ
Can I batch sign purchase agreements on iPad?
Yes. PDFBatchSigner works on Mac, iPhone, and iPad, with templates and signatures synced through your own iCloud.
Are these real PDF signatures?
Yes. Each signed PDF is cryptographically sealed. If the file changes afterward, the signature breaks and PDF readers can show that the document was altered.
Do my purchase agreements leave my device?
No files go to a PDFBatchSigner server. Signing happens on your device; templates and signatures sync through your own iCloud.
Can I use my own signing certificate?
Yes. The default key is generated on your device, using Apple's Secure Enclave when available and a Keychain-protected fallback otherwise. You can also import a supported .p12 identity.
What if one agreement has a shifted layout?
The app anchors to the form and shows the placement before signing, so drift is visible before it matters.
Drop the stack, done.
Get one launch notification when PDFBatchSigner becomes publicly downloadable for Mac, iPad, and iPhone.
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Free download. 200 signed documents included. Optional $19.99 US lifetime unlock. No subscription.