All Free Tools
Every DocSizer tool in one place, grouped by what you need to do. Pick one and start. Everything runs in your browser, so your files are never uploaded.
Photo tools
Resize photo or signature
Set an exact size in KB and pixels, with a drag-and-zoom crop.
Photo with name and date
Add a name and date strip to a photo, at the size your form asks for.
PDF tools
Signature tools
Clean signature maker
Turn a photo of your signature into a clean image with no paper or shadows.
Popular sizes
Quick pages for common limits: resize an image to 50 KB, compress a PDF to 200 KB, and increase an image to a minimum size in KB. Always use the numbers on your own form, because limits differ.
Guides
- How to upload a photo under 50 KB
- How to increase image size in KB for an online form
- How to make a clean signature image
- How to sign a PDF on your phone
- How to compress a PDF to 200 KB
- How to merge photos into one PDF on your phone
- Why an online form rejects your photo
- How to make a signature image for online forms
Frequently asked questions
Are all the tools free?
Yes. There is no sign-up and no watermark on your files.
Are my files uploaded to a server?
No. Every tool runs in your browser, on your own device, so your photos and documents are never sent anywhere.
Which tool should I use for my form?
Start with what the form asks for. A photo or signature that is too big or too small needs the resizer. Several documents that must be one file need Merge PDF. A PDF over a size limit needs Compress PDF.
Do the tools work on a phone?
Yes. They work in the browser on Android and iPhone. Very large PDFs can be slow on older phones.
Which size should I use?
Use the numbers in your form’s own instructions. Sizes differ from form to form, so check the latest notice or help page for the one you are filling in.