HOW IT WORKS
Fill PDF forms in three steps
- Choose an unencrypted PDF with existing form fields.
- Edit fields and check choices and character limits.
- Create a copy, open it to check and download.
ON-DEVICE PROCESSING
Fill existing PDF forms privately, including Vietnamese
Choose a PDF with AcroForm fields. Enter text, tick checkboxes or select choices, then create a copy. Scans without fields are clearly identified.
AN ON-DEVICE COPY
Fill the fields, preserve your text
Files stay on your device. Keep your original copy.
Rewriting a PDF can invalidate existing digital signatures. Merge/reorder may lose form fields, bookmarks and metadata.
Source page preview
Choose a PDF to preview it here.
This is the source page. The filled copy is created separately below; open the PDF to check text and selections.
PRACTICAL GUIDE
What to know before you fill pdf forms
Choose a PDF with AcroForm fields. Enter text, tick checkboxes or select choices, then create a copy. Scans without fields are clearly identified. Fill AcroForm text, checkboxes, dropdowns and radio choices and save a PDF copy locally without uploading your document.
Step 1
Choose an unencrypted PDF with existing form fields.
Step 2
Edit fields and check choices and character limits.
Step 3
Create a copy, open it to check and download.
HOW THE PDF CHANGES
Technical limits to understand
Note 1
One PDF up to 100 MB; XFA and password-protected documents are unsupported.
Note 2
Read-only and unsupported fields are preserved. No new fields are created on scans.
Note 3
Unicode values are preserved; Unicode appearances use Canvas images and may look softer when zoomed.
Note 4
Editing may invalidate existing digital signatures.
TROUBLESHOOTING
If the result is not what you expected
Can I fill a scanned PDF?
Only if it has actual AcroForm fields. Image-only scans have no fillable fields; the tool reports this instead of pretending to create a form.
Is Vietnamese preserved?
Yes. Unicode values remain in the form. Canvas creates appearances when standard PDF fonts lack characters. Open the copy and check before sharing.
Is the original changed?
No. A separate copy is created for download.
FAQ
Frequently asked questions
Can I fill a scanned PDF?
Only if it has actual AcroForm fields. Image-only scans have no fillable fields; the tool reports this instead of pretending to create a form.
Is Vietnamese preserved?
Yes. Unicode values remain in the form. Canvas creates appearances when standard PDF fonts lack characters. Open the copy and check before sharing.
Is the original changed?
No. A separate copy is created for download.