All tools / Edit & sign
Flatten a PDF
Turns form fields, comments and stamps into part of the page so they can't be changed.
How to use Flatten PDF
- Choose your PDFTap the button or drag files onto the page.
- AdjustPick the options you want. You'll see what will happen before anything is saved.
- DownloadYour new file downloads straight away. The original is never changed.
Questions
Is Flatten PDF really free?
Yes. Every Sheetfold tool is free with no sign-up, no watermark and no limit on how many files you do.
Are my files uploaded?
No. The work happens inside your web browser on your own device. Your files are never sent to Sheetfold or anyone else, and we can't see them.
Does it work on my phone?
Yes. Sheetfold works in modern browsers on iPhone, Android, Mac, Windows and Chromebook.
Is there a file size limit?
There's no set limit. Very large files (hundreds of MB) depend on how much memory your device has.
More tools
- Edit PDFAdd text, images, highlights and white-out boxes.
- Sign PDFDraw, type or upload your signature and place it.
- Redact PDFPermanently black out private information.
- Fill PDF formType into PDF form fields and save.
- Compress PDFMake a PDF smaller so it's easier to email and upload.
- Merge PDFCombine several PDFs into one file, in any order.