Free Flatten PDF: Lock Form Fields, Comments and Stamps
Turn filled-in form fields, comments, stamps and signatures into a fixed part of the page, so the PDF looks the same everywhere and cannot be changed.
Pro
Everything you already do here stays free.
Working with lots of files?
Avalon Pro adds bigger batches (up to {pro} files), one-click ZIP download, saved presets and your own file names.
Bigger batches are part of Avalon Pro
The free version takes up to {free} files at once. Avalon Pro takes up to {pro} in one batch, still processed on your device.
Bigger batches are part of Avalon Pro
The free version takes up to {free:batch_mb} in one batch. Avalon Pro takes up to {pro:batch_mb} at once, still processed on your device.
More pages in one run are part of Avalon Pro
The free version reads up to {free:pages_per_run} pages in one run. Avalon Pro reads up to {pro:pages_per_run} pages in one run and up to {pro} files at once.
One-click ZIP download is part of Avalon Pro
Download all still saves every file for free, one by one. Avalon Pro puts all your results in a single ZIP file.
Saved presets are part of Avalon Pro
Save your settings under a name and load them again in one click, on this device.
Custom file names are part of Avalon Pro
Choose how your output files are named, for example {name}-{n} or {date}-{name}.
A logo in your QR code is part of Avalon Pro
Put your logo in the middle of the code. The error correction goes to the highest level so phones can still read it.
Bulk QR codes are part of Avalon Pro
Paste or upload a CSV list and get one QR code per row, named from a column, all in one ZIP file.
Batch watermarks are part of Avalon Pro
Add your name, website or logo to every image in the batch, with the position, size and opacity you choose.
Choosing which photo info to keep is part of Avalon Pro
See what each photo carries, then keep only what you want in the new file, for example the date taken without the location. Free conversions already leave that info out of the new file.
Saved scenarios are part of Avalon Pro
Save your numbers under a name, compare two scenarios side by side, and export them all as a CSV file.
MP3 tags are part of Avalon Pro
Write the title, artist, album, year and a cover image into every MP3 you extract, so music players show them properly.
Page numbers are part of Avalon Pro
Number every page when you save: choose the position, the format (1, Page 1, 1 / 12 or Page 1 of 12) and the first number. Everything else in this tool stays free.
A/B thumbnail variants are part of Avalon Pro
Design up to 3 versions of your thumbnail, see them side by side in a mock feed, and download them all in one ZIP file. Everything else in this tool stays free.
Saved designs are part of Avalon Pro
Save your layouts, fonts and colors under a name and reuse them for every video, on this device.
Working on several PDFs at once is part of Avalon Pro
The free version works on one PDF at a time. Avalon Pro takes up to {pro} PDFs in one go and saves them as one ZIP file.
Bulk barcodes from a list are part of Avalon Pro
Paste or upload a CSV list and get one barcode per row in a single ZIP file, or a printable label sheet PDF with a different barcode on every label. Single barcodes and full sheets of one barcode stay free.
Saved details and invoice numbering are part of Avalon Pro
Save your business details and clients, number invoices automatically, and export a CSV list of every invoice you issue, all stored on this device. Making and downloading invoices stays free.
Longer documents are part of Avalon Pro
The free version converts documents of up to {free:pages_per_file} pages. Avalon Pro converts up to {pro:pages_per_file} pages per file.
Converting several files at once is part of Avalon Pro
The free version converts one file at a time. Avalon Pro takes up to {pro} files in one go and saves them as one ZIP file.
Longer recordings and batches are part of Avalon Pro
The free version transcribes one file at a time, up to {free:audio_minutes} long. Avalon Pro takes recordings up to {pro:audio_minutes}, up to {pro} files in one go, and saves every transcript in one ZIP file.
Longer videos and batches are part of Avalon Pro
The free version burns subtitles into one video of up to {free:burn_minutes}, and SRT and VTT downloads stay free. Avalon Pro burns subtitles into videos up to {pro:burn_minutes} long, up to {pro} videos in one go, with saved subtitle styles.
Checking many domains at once is part of Avalon Pro
The free checker runs the same full check on one domain at a time. Avalon Pro checks up to {pro} domains in one go and exports every result as a CSV file.
Checking many metadata files at once is part of Avalon Pro
The free validator runs the same full check on one file at a time. Avalon Pro checks up to {pro} metadata files in one go and exports every certificate, expiry date and issue as a CSV file.
Memes from a caption list are part of Avalon Pro
Paste a list of captions and get one meme per line on this picture, up to {pro:rows} at a time, all in one ZIP file. Making and downloading single memes stays free.
Counting many documents at once is part of Avalon Pro
The free counter runs the same full count on one document at a time. Avalon Pro counts up to {pro} documents in one go, shows them in one table and exports every count as a CSV file.
Longer PDFs are part of Avalon Pro
The free version reads up to {free:pages} pages of one PDF. Avalon Pro reads up to {pro:pages} pages, still on your device.
Bigger PDFs are part of Avalon Pro
The free version opens PDFs up to {free:file_mb}. Avalon Pro opens PDFs up to {pro:file_mb}, still on your device.
Bigger files are part of Avalon Pro
The free version takes one file up to {free:batch_mb}. Avalon Pro takes up to {pro} files in one go, up to {pro:batch_mb} in total, and saves the results as one ZIP file.
Bigger files are part of Avalon Pro
The free version takes up to {free:batch_mb} at once. Avalon Pro takes up to {pro:batch_mb} at once, with exactly the same results.
Bigger files in High quality are part of Avalon Pro
Free High quality conversions take files up to {free:server_mb}. Avalon Pro takes files up to {pro:server_mb}, with the same quality. Standard conversion in your browser stays free for files up to {free:batch_mb}.
Bigger presentations are part of Avalon Pro
The free version converts one presentation at a time, up to {free:server_mb}. Avalon Pro converts files up to {pro:server_mb} each, up to {pro} in one go, with exactly the same result.
Saved signatures are part of Avalon Pro
Save up to {pro:saved} signatures, initials or stamps on this device and add them to any PDF in one tap. Drawing, typing and signing stay free.
One-tap sharing sizes are part of Avalon Pro
Pick Discord, Gmail or a website and the video is compressed to fit, with the right resolution set for you. Choosing your own size in MB stays free.
Longer PDFs are part of Avalon Pro
The free version works on PDFs of up to {free:pages_per_file} pages and {free:file_mb}. Avalon Pro takes up to {pro:pages_per_file} pages and {pro:file_mb}, with exactly the same result, still on your device.
Bigger and longer videos are part of Avalon Pro
The free version compresses one video at a time, up to {free:file_mb} and {free:video_minutes} long. Avalon Pro takes videos up to {pro:file_mb} and {pro:video_minutes} long, up to {pro} at once, still on your device.
Longer texts are part of Avalon Pro
The free version voices up to {free:text_chars} at a time. Avalon Pro voices up to {pro:text_chars} in one go, with the same voices, and can save one audio file per paragraph.
One file per paragraph is part of Avalon Pro
Get a separate audio file for every paragraph, numbered in order and saved as one ZIP, ready to drop onto a video timeline. Making a single audio file stays free.
Drop shadows are part of Avalon Pro
Put a soft shadow under the cutout so the product sits on the background instead of floating. The cutout itself, the brushes and full-resolution downloads stay free.
Your own background picture is part of Avalon Pro
Place the cutout on any photo of yours, such as a room, a studio backdrop or a brand image. White, color and blurred backgrounds stay free.
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Your flattened PDFs
Ready
Flattened
This file could not be flattened.
Remove
Download PDF
Working on {name}…
{count} {count:PDF|PDFs} ready. Press Flatten PDF.
Done: {count} flattened {count:PDF|PDFs} ready to download.
{count} {count:file|files} skipped: only PDF files can be flattened here.
{name} is not really a PDF: its contents are in a different format, so it was not added.
{name} is empty (0 bytes), so it was not added.
The free version flattens one PDF at a time, so only the first one you chose was used.
Only {max} PDFs fit in one batch. Flatten these first, then add the rest.
{name} was not added: the limit is {mb} MB.
The PDF tool could not load. Check your connection and reload the page.
This PDF is locked. Remove the password with the unlock PDF tool first, then flatten the unlocked copy.
This file is not a valid PDF or it is damaged.
Reading the PDF…
Drawing page {n} of {total}…
{fields} form {fields:field|fields} and {notes} {notes:comment or stamp|comments and stamps} flattened
Nothing to flatten: this PDF has no form fields, comments or stamps. Saved unchanged.
{count} {count:page|pages} saved as pictures
Free, no sign-up and no watermark. The PDF stays on your device: nothing is uploaded.
Recent results on this device
Saved in this browser only, never uploaded. Kept for 7 days, up to 500 MB, oldest first out.
Nothing saved yet. Results you make in any tool show up here.
Avalon Pro keeps your recent results on this device for 7 days, so you can download them again from any tool, and carries a whole batch to the next tool. See Avalon Pro
Your file from {tool} is loaded below.{count} files from {tool} are loaded below.Only the first of your {count} results came along. Avalon Pro brings the whole batch (up to 500 files) to the next tool.This tool could not take the file from {tool}. Download it there and add it here.DownloadRemoveCleared. Nothing is kept on this device now.Storage on this device is full, so this result was not kept.
What this tool does
To flatten a PDF for free, drop it above and press Flatten PDF: filled-in form fields, comments, stamps and signatures become a fixed part of the page, with no sign-up and nothing uploaded. Flatten a form before you send it so the answers cannot be changed, and so they show up in every reader, printer and upload portal.
How to use it
- Drop your PDF into the box above, or click it to choose it.
- Under How to flatten, choose Forms, comments and stamps into the page (text stays searchable) or Every page into a picture (nothing can be selected or edited).
- For pictures, choose Standard for screens and email or Print for printing.
- Press Flatten PDF, then Download PDF.
The two ways compared
| Forms, comments and stamps into the page | Every page into a picture | |
|---|---|---|
| Form answers, comments, stamps | Fixed into the page | Fixed into the page |
| Page text | Still sharp, searchable and selectable | Part of a picture, cannot be selected |
| File size | About the same as before | Larger |
| Links | Keep working | Removed |
Tips
- Signing a PDF? Sign it with our free sign PDF tool, then flatten it here so the signature cannot be moved.
- Flattened file too large to email? Shrink it with our free compress PDF tool.
Free, Pro and Pro+
| Free | Pro | Pro+ | |
|---|---|---|---|
| PDFs at once | 1 | 50 | 50 |
| Size per batch | 100 MB | 500 MB | 500 MB |
| Flatten many PDFs at once | — | Yes | Yes |
| Download all as one ZIP | — | Yes | Yes |
| Saved presets | — | Yes | Yes |
| Custom file names | — | Yes | Yes |
| Result quality | The same on every plan | ||
| Server tools paid with credits | With a credit pack | With a credit pack | 300 credits every month |
Pro+ credits pay for server tools: higher-accuracy speech to text, higher-accuracy auto subtitles, fast server voices and ai pdf summaries, answers and translation. A credit pack (150 credits, valid for 12 months) works on any plan. Compare plans.
Frequently asked questions
How do I flatten a PDF for free?
Drop the PDF above, choose how to flatten and press Flatten PDF. You get a new PDF where the form fields, comments and stamps are part of the page, with no sign-up and no watermark.
What does flattening a PDF do?
It turns things that sit on top of the page, such as filled-in form fields, comments, stamps and pasted signatures, into part of the page itself. They then look the same in every reader and can no longer be edited, moved or deleted on their own.
Which way of flattening should I choose?
Forms, comments and stamps into the page keeps the text sharp and searchable and the file small, and is right for most filled-in forms. Every page into a picture also fixes the text itself, so nothing can be selected or edited, at the cost of a larger file.
Why does a printer or upload portal ask for a flattened PDF?
Form fields and comments are sometimes left out by printers, government portals and older readers. Once they are flattened into the page, what you see is what everyone else sees.
Does flattening remove private information?
No. Flattening fixes what is visible, it does not remove anything. To remove names or numbers for good, use our free redact PDF tool.
Are my PDFs uploaded anywhere?
No. The PDF is flattened inside your browser, on your own device. Nothing is sent to our servers.
Are there limits?
The free version flattens one PDF of up to 100 MB at a time, either way. Avalon Pro flattens up to 50 PDFs (500 MB) in one go and adds a ZIP download, saved presets and your own file names.