Adobe Fill & Sign Alternative
Looking for a Adobe Fill & Sign alternative?
Adobe Fill & Sign is 470MB and collects your data. eSign PDF is under 50MB, 100% private, with Apple Pencil support Adobe lacks. A better alternative.
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Short answer
eSign PDF is the lightweight Adobe Fill & Sign alternative on iPhone: under 50MB vs Adobe's 470MB, no data collection, full Apple Pencil support Adobe lacks, and tamper-proof export included (Adobe locks it behind Acrobat Pro at $19.99/month). Trade-off: no desktop/Creative Cloud integration.
Last updated 2026-04-18
Why people look for Adobe Fill & Sign alternatives
Adobe Fill & Sign is 470MB+. On a 64GB iPhone, that's a significant chunk of storage for an app you use occasionally.
Adobe collects usage data and pushes you toward Document Cloud storage. Your documents end up on Adobe's servers.
No dedicated Apple Pencil support. Adobe, one of the biggest creative software companies, somehow doesn't support the Apple Pencil properly in their signing app.
Adobe pushes you toward Acrobat Pro at $19.99/month for features like tamper-proof export that should be standard.
The app feels bloated because it's built on Adobe's entire PDF rendering engine. It's slow to launch and heavy on memory.
Why eSign PDF is a better fit
10x lighter
eSign PDF is under 50MB. Adobe Fill & Sign is 470MB+. Launches faster, uses less memory, doesn't slow down your phone.
Full Apple Pencil support
Palm rejection, 4 pen styles, pressure sensitivity. Your signatures look like real ink, not digital scribbles.
Zero data collection
eSign PDF collects nothing. No usage tracking, no Document Cloud, no account required. Adobe tracks everything.
Tamper-proof export included
PDF flattening is built in at no extra cost. Adobe gates this behind Acrobat Pro at $19.99/month.
Feature-by-feature comparison
| Feature | eSign PDF | Adobe Fill & Sign |
|---|---|---|
| App size | Under 50 MB | 470+ MB |
| Apple Pencil | Full support: palm rejection, 4 pen styles, pressure | No dedicated support |
| Data collection | None | Usage tracking + Document Cloud push |
| Document storage | On-device only | Document Cloud by default |
| Tamper-proof export | Included | Requires Acrobat Pro ($19.99/mo) |
| Signature options | Draw, type, import photo, save multiple | Draw or type |
| AI field detection | Yes, on-device | Limited |
| Account required | No | Adobe ID optional but pushed hard |
| Works offline | Yes | Basic yes; cloud features need internet |
| Best for | Personal signing with quality signatures | Users already in Adobe ecosystem |
When the Adobe Fill & Sign alternative actually matters
Designer who already pays for Creative Cloud
If you're paying $54.99/month for Creative Cloud, Adobe Fill & Sign plays nicely with Acrobat Pro on desktop. That integration is the one reason to stay with Adobe. For everyone else, you're carrying 470MB of app for occasional signing.
iPad user with Apple Pencil
You want to sign contracts naturally with the Pencil. Adobe Fill & Sign treats the Pencil like a finger — no palm rejection, no pressure sensitivity. eSign PDF gives you Fountain, Ballpoint, Monoline, and Marker pens that respond to pressure. Signatures look handwritten, not digital.
Storage-constrained iPhone
If your iPhone is 64GB or 128GB and constantly low on space, 470MB for a signing app you use twice a month is steep. eSign PDF is under 50MB. You save 420MB for photos, apps, or music you actually use daily.
Pricing: eSign PDF vs Adobe Fill & Sign
eSign PDF
$19.99/yr
Or $24.99 lifetime. All features included.
Adobe Fill & Sign
Free (basic)
Acrobat Pro: $19.99/month for advanced features.
Frequently asked questions
Is eSign PDF better than Adobe Fill & Sign?
For signing on iPhone/iPad, yes. eSign PDF is lighter, faster, more private, and has better signature tools including Apple Pencil support. Adobe is better if you're already deep in the Adobe ecosystem on desktop.
Does eSign PDF support all the same PDF features?
For signing and filling forms, yes. Text, dates, checkboxes, stamps, signatures, initials, and camera scanning. For advanced PDF editing (merging, splitting, OCR), Adobe has more features.
Can eSign PDF export to Document Cloud?
No. eSign PDF does not integrate with Adobe Document Cloud. Exports save to your iPhone Files app, which you can manually move to any cloud service (iCloud, Dropbox, Google Drive).
Will Adobe signatures still work if I switch?
Yes. PDFs signed in Adobe Fill & Sign open normally in eSign PDF. You can add more signatures, dates, or text on top. Adobe-flattened PDFs are read-only but still viewable.
Our verdict
If you're already in the Adobe Creative Cloud ecosystem and use Acrobat Pro on desktop, Adobe Fill & Sign is the consistent choice. For everyone else — especially iPad + Apple Pencil users, storage-constrained iPhones, or anyone who cares about on-device privacy — eSign PDF does the job with a tenth of the disk footprint and no data collection.
Ready to switch?
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