Detect fields
We read AcroForm fields with pdf-lib in your browser.
Fill PDF form fields (AcroForms) when you cannot type in a viewer. List text and checkbox fields, edit values, and download — private and free for common government and HR forms.
PDFForm data never leaves your device.
We read AcroForm fields with pdf-lib in your browser.
Fill text boxes and checkboxes, then save. We attempt to flatten when supported.
Fill AcroForm text and checkbox fields in your browser — A portal rejects the file shape and you must fix it without desktop Acrobat. You inherited a messy packet from a scanner or email thread and need a clean file before a form upload.
Fill PDF Form is built for private, in-browser work. Upload-based PDF sites often store temporary copies on someone else’s disk; SortMyFile’s default is the opposite — processing stays on your device for this utility. Form data never leaves your device. If a step needs a one-time language pack or WASM library from a CDN, that is asset delivery — not your document contents being sent to SortMyFile for server-side processing. Close the tab when you are done if you want memory cleared.
Fill AcroForm text and checkbox fields in your browser. Before you run Fill PDF Form, keep an original copy of every source file. Spot-check the download on the same device you will use for the portal or email. Large scans and phone photos are limited by browser RAM — if a run stalls, shrink the input first or split the job. SortMyFile browser tools stay free forever with no daily caps.
Fill AcroForm text and checkbox fields in your browser — A portal rejects the file shape and you must fix it without desktop Acrobat. You inherited a messy packet from a scanner or email thread and need a clean file before a form upload. People reach for Fill PDF Form when a form, HR desk, or messaging app rejects the current file shape, size, or format and installing desktop software is overkill. Pair it with sign-pdf-online, protect-pdf, pdf-metadata when you need a short pipeline (for example compress then OCR, or HEIC to JPG then JPG to PDF). Results are not a substitute for official portal rules — always re-read the receiving site’s instructions before a deadline.
Fill PDF Form trades convenience for honesty about browser limits. Extremely large files, corrupted inputs, or DRM-protected media can fail. Password-protected PDFs need a password you already know — SortMyFile does not crack encryption. Free use does not require an account; Pro (when checkout ships) is planned to raise limits and reduce ads. Until then, the free tier is enough for most one-off private jobs.
Common questions
Scanned forms are images — use OCR or Fill only works on real AcroForm fields.
Not supported. Convert to AcroForm elsewhere if needed.
Yes — download a new file and keep the source on disk as backup. (Fill PDF Form.)
After the app shell and libraries are cached by your browser, many PDF tools keep working offline for that session.
Aim under ~50–100 MB depending on device RAM. Very large scans may stall older phones.
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