> PDF SealBox alternatives on IndieNeed: pdfzus, OpenP7M, PDF Dark Mode and similar products, compared by pricing, category, open source and upvotes.

Page: https://www.indieneed.com/alternatives/pdf-sealbox

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# PDF SealBox alternatives

Products from the same categories and topics as PDF SealBox on IndieNeed. Sharing a category does not mean one can replace the other.

## About [PDF SealBox](https://www.indieneed.com/products/pdf-sealbox)

PDF SealBox offers browser-based tools for adding visible stamps and cross-page seals, page numbers and watermarks, converting images to PDF, splitting PDFs, and exporting PDF pages as images. Choose pages and settings, preview the result, then download a separate file.

- Freemium
- Productivity

- [pdfzus](https://www.indieneed.com/products/pdfzus)
  pdfzus is a browser-based tool for combining multiple PDF files, arranging them by drag and drop, and compressing the finished document when needed. The core workflow requires no account and adds no watermark.
  Productivity by @yxchen1994
- [OpenP7M](https://www.indieneed.com/products/openp7m)
  OpenP7M reads PDFs inside P7M files and supported FatturaPA XML in your browser. Document content stays on your device. Free full watermarked preview; single-file export €1.99.
  Productivity by @0xhinstein
- [PDF Dark Mode](https://www.indieneed.com/products/pdf-dark-mode)
  PDF Dark Mode is a free online PDF reader that inverts colors for comfortable dark-mode reading and less eye strain. Processing stays 100% local in your browser—files never leave your device, with no signup or install.
  Productivity by @pdfdarkmode
- [SWD Image Compressor](https://www.indieneed.com/products/swd-image-compressor)
  SWD Image Compressor is a free, privacy-first tool for optimizing images directly in your browser. Compress JPEG, PNG, WebP and AVIF files without uploading them to a server.
  Developer Tools by @sergiowebdeveloper
- [FormWiz](https://www.indieneed.com/products/formwiz) Featured: a paid launch
  FormWiz helps families and businesses complete repetitive PDFs and Word documents without retyping the same information every time.
  Productivity by @mattjlacher
- [Ovatly](https://www.indieneed.com/products/ovatly)
  Ovatly is a platform of 250 free online tools for the small digital jobs people do every day: merge a PDF, compress an image, count words, format JSON, generate a password, or create a QR code.
  Productivity by @ovatlysupport
- [tmps.fyi](https://www.indieneed.com/products/tmps-fyi)
  tmps.fyi is a free online clipboard for sharing text, images and files between phones, tablets and computers in real time. On desktop, capture screenshots directly in the browser.
  Productivity by @devxtmps
- [Thinkbeside](https://www.indieneed.com/products/thinkbeside)
  Thinkbeside is a Chrome extension that places AI models in a sidebar beside the page, PDF or video you are viewing. It is aimed at people who want to question their reading without copying text or switching tabs.
  Productivity by @punitmakwana25
- [ZIPZAX](https://www.indieneed.com/products/zipzax)
  ZIPZAX brings 475 free online tools for everyday digital work into one consistent workspace. Tools are grouped into clear categories such as Documents & PDF, Images, Video & Audio, Converters, Text & Writing,…
  Productivity by @mojidhoss
- [Gmail Filters](https://www.indieneed.com/products/gmail-filters)
  Describe the filter you want in plain English ("label receipts from Amazon and skip the inbox") and Gmail Filters writes the native Gmail filter rule, so you don't need to learn Gmail's search syntax.
  Productivity by @seymour

## How they compare

PDF SealBox is listed under Productivity, and so is every product below. Every product below can be used for free or has a free plan. FormWiz has the most upvotes on IndieNeed among them.

| Product | Pricing | Main category | Open source | Upvotes |
| --- | --- | --- | --- | --- |
| PDF SealBox | Freemium | Productivity | No | 0 |
| [pdfzus](https://www.indieneed.com/products/pdfzus) | Free | Productivity | No | 2 |
| [OpenP7M](https://www.indieneed.com/products/openp7m) | Freemium | Productivity | No | 4 |
| [PDF Dark Mode](https://www.indieneed.com/products/pdf-dark-mode) | Free | Productivity | No | 7 |
| [SWD Image Compressor](https://www.indieneed.com/products/swd-image-compressor) | Free | Developer Tools | No | 3 |
| [FormWiz](https://www.indieneed.com/products/formwiz) | Free | Productivity | No | 30 |
| [Ovatly](https://www.indieneed.com/products/ovatly) | Free | Productivity | No | 7 |
| [tmps.fyi](https://www.indieneed.com/products/tmps-fyi) | Free | Productivity | No | 5 |
| [Thinkbeside](https://www.indieneed.com/products/thinkbeside) | Free | Productivity | No | 0 |
| [ZIPZAX](https://www.indieneed.com/products/zipzax) | Free | Productivity | No | 7 |
| [Gmail Filters](https://www.indieneed.com/products/gmail-filters) | Free | Productivity | No | 6 |

The rest are ordered by how closely they match PDF SealBox (shared categories and tags), then by upvotes.

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