How to compress PDF file before upload

Question

Hi, I want to compress pdf file size before upload,can anyone help to acheive it.

Selvi Jp · Answer

Hi Vishal, I want only reduce the file size not compress as ZIP format. Thank you

Vishal Yelve · Answer

Hi Selvi, Please check this out. https://stackoverflow.com/questions/8377268/file-compression-before-upload-on-the-client-side

Selvi Jp · Answer

Hi, I want to compress pdf in React js or javascript

Deepak Rawat · Answer

You can utilize third-party libraries that provide PDF compression functionality. One such library is pdf-lib . Here's an example of how you can compress a PDF file before uploading it in React using pdf-lib

Uday Dodiya · Answer

in where you want to compress PDF file, means in which technology or language you used

Leon D · Answer

Spire.PDF library is capable of compressing PDF files. Refer to the below article: https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Document-Operation/How-to-Compress-PDF-Document-in-C-VB.NET.html

Marvin Reid · Answer

One solution is to compress the file via use of a backend service which would allow you to levearge the PDFOptimizierOptions class. This would provide extensive control for controlling the quality and size of the file, and it would return a compressed PDF tailored to your needs. Here is some sample code that demonstrates some options: using (RasterCodecs _codecs = new RasterCodecs()) { // Set the path to the PDF utilities dll _codecs.Options.Pdf.InitialPath = @"C:\LEADTOOLS22\Bin\Dotnet4\x64"; string[] _pdfFiles = Directory.GetFiles(_pdfFileDir, "*.pdf"); string _destDir = Path.Combine(_pdfFileDir, "OptimizedPDFs"); // Create the optimizer options PDFOptimizerOptions myOptimizerOptions = new PDFOptimizerOptions(); myOptimizerOptions.AutoOptimizerMode = PDFAutoOptimizerMode.BestSize; myOptimizerOptions.ColorImageDownsamplingMode = PDFDownsamplingMode.Average; myOptimizerOptions.GrayImageDownsamplingMode = PDFDownsamplingMode.Bicubic; myOptimizerOptions.MonoImageDownsamplingMode = PDFDownsamplingMode.Bicubic; myOptimizerOptions.ColorImageDownsampleFactor = 2.0; myOptimizerOptions.GrayImageDownsampleFactor = 2.0; myOptimizerOptions.MonoImageDownsampleFactor = 2.0; myOptimizerOptions.ColorImageDPI = 150; myOptimizerOptions.GrayImageDPI = 150; myOptimizerOptions.MonoImageDPI = 150; myOptimizerOptions.ColorImageCompression = RasterImageFormat.Jpeg; myOptimizerOptions.GrayImageCompression = RasterImageFormat.RasPdfLzw; myOptimizerOptions.MonoImageCompression = RasterImageFormat.Jbig; myOptimizerOptions.EmbedAllFonts = false; myOptimizerOptions.SubsetFonts = true; foreach (string _pdfFile in _pdfFiles) { string _pdfFileName = Path.GetFileNameWithoutExtension(_pdfFile); string _destFile = Path.Combine(_destDir, $"{_pdfFileName}_OPTIMIZED.pdf"); PDFFile _pdf = new PDFFile(_pdfFile); _pdf.OptimizerOptions = myOptimizerOptions; _pdf.Optimize(_destFile); } https://www.leadtools.com/help/sdk/tutorials/dotnet-console-optimize-pdf-files-for-storage.html https://www.leadtools.com/help/sdk/dh/pdf/pdfoptimizeroptions.html

How to compress PDF file before upload

Answers (7)