https://github.com/samirpaulb/filecompressor
An online PDF file compression tool to reduce the size of a .pdf file. Python Flask is used to upload the file to a temporary location on the server.
https://github.com/samirpaulb/filecompressor
c css file-compressor flask flask-application html javascript nix online-pdf-compressor pdf pdf-compression pdfnet pdfnetpython python python-server python3 repl reple server shell
Last synced: 6 months ago
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An online PDF file compression tool to reduce the size of a .pdf file. Python Flask is used to upload the file to a temporary location on the server.
- Host: GitHub
- URL: https://github.com/samirpaulb/filecompressor
- Owner: SamirPaulb
- Created: 2022-06-06T17:32:08.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2023-10-26T14:30:41.000Z (about 2 years ago)
- Last Synced: 2025-06-11T20:25:25.190Z (7 months ago)
- Topics: c, css, file-compressor, flask, flask-application, html, javascript, nix, online-pdf-compressor, pdf, pdf-compression, pdfnet, pdfnetpython, python, python-server, python3, repl, reple, server, shell
- Language: Python
- Homepage: https://filecompressor.samirpaul.repl.co
- Size: 45.8 MB
- Stars: 25
- Watchers: 2
- Forks: 16
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
Online PDF Compression Tool
### 💡About The Project:
An online PDF file compression tool to reduce the size of a .pdf file. Python Flask is used to upload the file to a temporary location on the server.
In the backend, using the ```PDFNetPython``` library that file gets reduced and saved to its final location. After download, the files are automatically deleted from the server after 1 hour. Technologies used in this project: ```Python3```, ```Flask```, ```C```, ```Shell```, ```Nix```, ```Replit```, ```Git```, ```HTML```, ```CSS```, ```JavaScript```.
- [Live Demo 🚀 ](https://filecompressor.samirpaul.repl.co)
## Video:
https://user-images.githubusercontent.com/77569653/172896703-9e4998c1-40da-46ae-810e-780e47a391f9.mp4
- Landing Page:
### Flask File Uploading:
In HTML form, the enctype property is set to ```"multipart/form-data"``` to publish the file to the URL.The URL handler extracts the file from the ```request.files []``` object and saves it to the required location. The path to the upload folder is defined as ```app.config['UPLOAD_FOLDER']``` and maximum size (in bytes) as
```maximum size (in bytes)```.
The server-side flask script fetches the file from the request object using ```name = request.files['file'].filename```.
On successfully uploading the file, it is saved to the desired location on the server.
Here’s the Python code for the Flask application.
```python
from flask import Flask, render_template, request
from werkzeug import secure_filename
app = Flask(__name__)
@app.route('/upload')
def upload_file():
return render_template('upload.html')
@app.route('/uploader', methods = ['GET', 'POST'])
def upload_file():
if request.method == 'POST':
f = request.files['file']
f.save(secure_filename(f.filename))
return 'file uploaded successfully'
if __name__ == '__main__':
app.run(debug = True)
```
### How PDF is compressed in backend:
```python
import os
import sys
from PDFNetPython3.PDFNetPython import PDFDoc, Optimizer, SDFDoc, PDFNet
def compress_file(input_file: str, output_file: str):
if not output_file:
output_file = input_file
try:
PDFNet.Initialize()
doc = PDFDoc(input_file)
doc.InitSecurityHandler()
Optimizer.Optimize(doc)
doc.Save(output_file, SDFDoc.e_linearized)
doc.Close()
except Exception as e:
doc.Close()
return False
return True
if __name__ == "__main__":
input_file = sys.argv[1]
output_file = sys.argv[2]
compress_file(input_file, output_file)
```
### File Download:
```js
function downloadFile(filename) {
if(response !== null) {
fname = response.filename;
var url = "static/resource/" + fname.toString(2);
console.log(url);
fetch(url)
.then(response => response.blob())
.then(blob => {
const link = document.createElement("a");
link.href = URL.createObjectURL(blob);
link.download = fname;
link.click();
})
.catch(console.error);
}
}
```
## 🤔 How to contribute
- [x] Fork this repository;
- [x] Create a branch with your feature: `git checkout -b my-feature`;
- [x] Commit your changes: `git commit -m "feat: my new feature"`;
- [x] Push to your branch: `git push origin my-feature`.
Made with ❤️ by [@SamirPaulb](https://github.com/SamirPaulb) :wave: [Get in touch](https://www.linkedin.com/in/SamirPaul)