I have found a inbuilt method to split pdf by size, however i am not sure about the parameter as it is asking for parameter to split the pdf (long size) and not sure using the parameter the split file in kb, mb. Can someone please suggest me the usage of this parameter, support i want to split the file of 95MB into 5MB files, so what value i need to pass as parameter i.e. 5000, 500, 50 or 5.
Code:
PdfReader reader = new PdfReader(fileName);
PdfDocument sourceDoc = new PdfDocument(reader);
IList<PdfDocument> pdfDocs = new CustomPdfSplitter(sourceDoc, outputFileName).SplitBySize(fileSize);
Code for CustomPdfSplitter:
private class CustomPdfSplitter : PdfSplitter
{
private String dest;
private int partNumber = 1;
public CustomPdfSplitter(PdfDocument pdfDocument, String dest) : base(pdfDocument)
{
this.dest = dest;
}
protected override PdfWriter GetNextPdfWriter(PageRange documentPageRange)
{
return new PdfWriter(dest.Replace(".pdf","_" + (partNumber++).ToString("0000")+".pdf"));
}
}
public string SplitPDFBySize(string fileName, string outputFileName, int fileSize)
{
StringBuilder outputMsg = new StringBuilder();
PdfReader reader = new PdfReader(fileName);
PdfDocument sourceDoc = new PdfDocument(reader);
long fileSizeinByte = fileSize * 1000000;
IList<PdfDocument> pdfDocs = new CustomPdfSplitter(sourceDoc, outputFileName).SplitBySize(fileSizeinByte);
try
{
PBChild.Value = 0;
PBChild.Maximum = pdfDocs.Count;
for (int i = 0; i < pdfDocs.Count; i++)
{
string splittedFile = outputFileName.Replace(".pdf", "_" + (i + 1).ToString("0000") + ".pdf");
pdfDocs[i].Close();
outputMsg.AppendLine(fileName + " splitted with output file: " + splittedFile);
PBChild.Value++;
}
}
catch (Exception ex)
{
outputMsg.AppendLine("Error: " + fileName + "||" + ex.Message);
}
finally
{
sourceDoc.Close();
}
return outputMsg.ToString();
}
SplitBySize take as parameter size specified in bytes. So, to split document into 5 MB documents you need to pass 5*2^20 as parameter.
Although, you're right that the documentation was slightly uninformative. We've already fixed that and you can find these fixes in the SNAPSHOT version.
I've converted some pdf files to jpg using Ghostscrpt. All is good, but the images are horizontal. How do I change the image orientation?
Source Code:
[HttpPost]
public ActionResult PreprocessPDF(string fileTempName)
{
var path = ConfigurationManager.AppSettings["TemporaryDirectory"].ToString();
string file = Path.Combine(path, fileTempName);
System.IO.Directory.CreateDirectory(path + #"\" + fileTempName + "_temp"); // create temporary directory for storing slides
//for pdf's
int desired_x_dpi = 96;
int desired_y_dpi = 96;
_lastInstalledVarsion = GhostscriptVersionInfo.GetLastInstalledVersion();
_rasterizer = new GhostscriptRasterizer();
_rasterizer.Open(file, _lastInstalledVarsion, false);
int countSlides = _rasterizer.PageCount;
for (int pageNumber = 1; pageNumber <= _rasterizer.PageCount; pageNumber++)
{
string pageFilePath = Path.Combine(path + #"\" + fileTempName + "_temp", "Slide" + pageNumber.ToString() + ".jpg");
Image img = _rasterizer.GetPage(desired_x_dpi, desired_y_dpi, pageNumber);
img.Save(pageFilePath, ImageFormat.Jpeg);
Console.Write(" ");
}
_rasterizer.Close();
return Json(new { success = true, slides = countSlides }, "json/application");
}
Ok I found a solution of this problem.
Upgrade Ghostscript.NET to v 1.1.9
Upgrade native Ghostscript library to 9.14 version.
I am trying to create a Windows app which uploads files to FTP. Essentially, it looks for .jpeg files in a given folder, it reads through the barcodes found in the .jpg files before uploading it into the FTP server, and entering the URL into the database for our records.
As there will be multiple files at any given time in the folder, I am essentially trying to read them in a loop, and process them accordingly. However, I get an OutOfMemoryException whenever the loop starts again. I am trying to figure out what I'm doing wrong here. I have appended my code below:
private void btnProcess_Click(object sender, RoutedEventArgs e)
{
podPath = Directory.GetFiles(DestPath, "*.jpg");
List<string> scans = new List<string>(podPath.Length);
List<string> badscans = new List<string>();
byte[] imageBytes;
string filename, result;
POD conpod = new POD();
OTPOD otpod = new OTPOD();
ConsignmentObj scanJob;
//Pickup OTScan;
//Consolidate ccv;
for (int i = 0; i < podPath.Count(); i++ )
{
filename = podPath[i].ToString();
using (Bitmap bm = (Bitmap)Bitmap.FromFile(filename))
{
var results = barcodeReader.Decode(bm);
result = results.ToString();
bm.Dispose();
}
if (result != null)
{
//if barcode can be read, we throw the value into the database to pull out relevant information
if (result.Contains(ConNotePrefix))
{
#region Consignments
scanJob = getCon(result.ToString());
final = ImageFolder + "\\" + result.ToString() + ".jpg";
using (System.Drawing.Image img = System.Drawing.Image.FromFile(filename))
{
MemoryStream ms = new MemoryStream();
try
{
img.Save(ms, ImageFormat.Jpeg);
imageBytes = ms.ToArray();
img.Dispose();
}
finally
{
ms.Flush();
ms.Close();
ms.Dispose();
}
}
lock (filename)
{
if (System.IO.File.Exists(filename))
{
File.Delete(filename);
}
}
using (var stream = File.Create(final)) { }
File.WriteAllBytes(final, imageBytes);
File.Delete(filename);
conpod.ConsignmentID = scanJob.ConsignmentID;
conpod.UserID = 1;
conpod.Location = ftpUrl + "//" + result.ToString() + ".jpg";
conpod.rowguid = Guid.NewGuid();
UploadFilesToFtp(ftpUrl, ftpUser, ftpPass, final, result.ToString() + ".jpg");
insertPOD(conpod);
scans.Add(result.ToString());
#endregion
}
}
else
{
badscans.Add(filename);
}
}
this.lbScans.ItemsSource = scans;
this.lbBadScans.ItemsSource = badscans;
}
The FTP method, UploadFilesToFtp(x, x, x, x, x, x) is not a problem here. All feedback will be much appreciated.
An OutOfMemoryException can also be thrown by the method FromFile of the Image class when
The file does not have a valid image format.
or
GDI+ does not support the pixel format of the file.
So i think there is a problem with one of your image files you are reading. One solution is to catch the OutOfMemoryException and adding the file to the badscans.
try{
using (Bitmap bm = (Bitmap)Bitmap.FromFile(filename)) {
var results = barcodeReader.Decode(bm);
result = results.ToString();
bm.Dispose();
}
}
catch(OutOfMemoryException) {
badscans.add(filename);
}
I'm creating a tool that reads information from a file and also displays an image extracted from said file as well. it reads the info just fine and everything but when it comes to displaying the image it freezes the program without an error. the program just becomes unresponsive. the debugger doesn't say anything either except after some time it will say the thread has exited with still no response from the program.
i need to rename some stuff as i don't want to get in trouble
Here's the code I'm using to extract and display the image:
try
{
global.meta.filetype = STFSRead.readString_C(0, 4);
textBox2.Text = global.meta.filetype;
textBox3.Text = STFSRead.detectType(global.meta.contype.ToString("X4"));
textBox4.Text = global.meta.metaversion.ToString();
textBox5.Text = global.meta.id1;
textBox6.Text = global.meta.version.ToString("X");
textBox7.Text = global.meta.version2.ToString("X");
textBox8.Text = global.meta.id2;
textBox9.Text = global.meta.id3;
textBox10.Text = global.meta.id4;
textBox11.Text = global.meta.id5;
textBox12.Text = global.meta.displayname;
textBox13.Text = global.meta.titlename;
textBox14.Text = STFSRead.detectSomeInfo(global.meta.aflag.ToString("X2"));
pictureBox1.Image = STFSRead.loadImage();
}
catch
{
throw new Exception("What did you do?\n All this is suppose to do is read a file, how did you screw that up?");
}
public static Image loadImage()
{
Exception failed = new Exception("LoadImage failed. Contact a developer");
string path = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData) + "/appname/cache/";
string imgname = global.meta.id.Replace(" ", "") + ".png";
if (Directory.Exists(#path))
{
if (File.Exists(#path + imgname))
{
using (Image img = Image.FromFile(#path + imgname))
{
return img;
}
throw failed;
}
else if (!File.Exists(#path + imgname))
{
if (extractData(imgname, 0x171A, 0x4000))
{
using (Image img = Image.FromFile(#path + imgname))
{
return img;
}
throw failed;
}
else
throw failed;
}
else
throw failed;
}
else if(!Directory.Exists(#path)){
Directory.CreateDirectory(#path);
if (File.Exists(#path + imgname))
{
using (Image img = Image.FromFile(#path + imgname))
{
return img;
}
throw failed;
}
else if (!File.Exists(#path+imgname))
{
if (extractData(imgname, 0x171A, 0x4000))
{
using (Image img = Image.FromFile(#path + imgname))
{
return img;
}
throw failed;
}
else
throw failed;
}
else
throw failed;
}
else
throw failed;
}
public static bool extractData(string filename, long startpos, long length)
{
string data = STFSRead.readString_A(startpos, length);
string path = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData)+"/appname/cache/";
if (Directory.Exists(#path))
{
using (StreamWriter file = new StreamWriter(#path + filename))
{
file.Write(data);
file.Close();
}
}
else if (!Directory.Exists(#path))
{
Directory.CreateDirectory(#path);
using (StreamWriter file = new StreamWriter(#path + filename))
{
file.Write(data);
file.Close();
}
}
if (File.Exists(#path + filename))
return true;
else
throw new Exception("Couldn't extract file "+filename+" at location "+startpos+" with a length of "+length);
}
public static string readString_A(long startpos, long length)
{
string s = "";
for (long i = startpos; i < startpos + length; i = i++)
{
global.fs.Position = i;
byte[] buf = new byte[1];
global.fs.Read(buf, 0, 1);
if (buf[0] == 0x00) // Null symbol
{
}
else
{
char c = Convert.ToChar(buf[0]);
s += c;
}
}
if (s == "" || s == " ")
{
s = "";
}
return s;
}
I have checked my appdata folder and while the directory gets created, the image does not get created so i'm thinking its failing during extraction. and none of my exceptions get triggered either
Edit: about the exceptions.... i added all of them when the program started screwing up to see if it will trigger them and narrow down where the error might be. i don't want it to handle those exceptions. might not be the best way to do that but i am still learning c# so i don't expect it to be the best way. if there is a better way to do this then let me know.
I think your problem is here:
for (long i = startpos; i < startpos + length; i = i++)
It should be:
for (long i = startpos; i < startpos + length; i++)
i=i++ is not actually incremeting the variable
You can find why here: i = i++ doesn't increment i. Why?. Thanks to #RenniePet for the link.
I would like to convert from an image (like jpg or png) to PDF.
I've checked out ImageMagickNET, but it is far too complex for my needs.
What other .NET solutions or code are there for converting an image to a PDF?
Easy with iTextSharp:
class Program
{
static void Main(string[] args)
{
Document document = new Document();
using (var stream = new FileStream("test.pdf", FileMode.Create, FileAccess.Write, FileShare.None))
{
PdfWriter.GetInstance(document, stream);
document.Open();
using (var imageStream = new FileStream("test.jpg", FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
var image = Image.GetInstance(imageStream);
document.Add(image);
}
document.Close();
}
}
}
iTextSharp does it pretty cleanly and is open source. Also, it has a very good accompanying book by the author which I recommend if you end up doing more interesting things like managing forms. For normal usage, there are plenty resources on mailing lists and newsgroups for samples of how to do common things.
EDIT: as alluded to in #Chirag's comment, #Darin's answer has code that definitely compiles with current versions.
Example usage:
public static void ImagesToPdf(string[] imagepaths, string pdfpath)
{
using(var doc = new iTextSharp.text.Document())
{
iTextSharp.text.pdf.PdfWriter.GetInstance(doc, new FileStream(pdfpath, FileMode.Create));
doc.Open();
foreach (var item in imagepaths)
{
iTextSharp.text.Image image = iTextSharp.text.Image.GetInstance(item);
doc.Add(image);
}
}
}
Another working code, try it
public void ImagesToPdf(string[] imagepaths, string pdfpath)
{
iTextSharp.text.Rectangle pageSize = null;
using (var srcImage = new Bitmap(imagepaths[0].ToString()))
{
pageSize = new iTextSharp.text.Rectangle(0, 0, srcImage.Width, srcImage.Height);
}
using (var ms = new MemoryStream())
{
var document = new iTextSharp.text.Document(pageSize, 0, 0, 0, 0);
iTextSharp.text.pdf.PdfWriter.GetInstance(document, ms).SetFullCompression();
document.Open();
var image = iTextSharp.text.Image.GetInstance(imagepaths[0].ToString());
document.Add(image);
document.Close();
File.WriteAllBytes(pdfpath+"cheque.pdf", ms.ToArray());
}
}
One we've had great luck with is PDFSharp (we use it for TIFF and Text to PDF conversion for hundreds of medical claims every day).
http://pdfsharp.com/PDFsharp/
Such task can be easily done with help of Docotic.Pdf library.
Here is a sample that creates PDF from given images (not only JPGs, actually):
public static void imagesToPdf(string[] images, string pdfName)
{
using (PdfDocument pdf = new PdfDocument())
{
for (int i = 0; i < images.Length; i++)
{
if (i > 0)
pdf.AddPage();
PdfPage page = pdf.Pages[i];
string imagePath = images[i];
PdfImage pdfImage = pdf.AddImage(imagePath);
page.Width = pdfImage.Width;
page.Height = pdfImage.Height;
page.Canvas.DrawImage(pdfImage, 0, 0);
}
pdf.Save(pdfName);
}
}
Disclaimer: I work for the vendor of the library.
If you want to do it in a cross-platform way, without any thirty part library,
or paying any license, you can use this code.
It takes an array of pictures (I think it only works only with jpg) with its sizes and return a pdf file, with one picture per page.
You have to create two files:
File Picture:
using System;
using System.Collections.Generic;
using System.Text;
namespace PDF
{
public class Picture
{
private byte[] data;
private int width;
private int height;
public byte[] Data { get => data; set => data = value; }
public int Width { get => width; set => width = value; }
public int Height { get => height; set => height = value; }
}
}
File PDFExport:
using System;
using System.Collections.Generic;
namespace PDF
{
public class PDFExport
{
private string company = "Your Company Here";
public sbyte[] createFile(List<Picture> pictures)
{
int N = (pictures.Count + 1) * 3;
string dateTimeStr = DateTime.Now.ToString("yyyyMMddhhmmss");
string file1 =
"%PDF-1.4\n";
string file2 =
"2 0 obj\n" +
"<<\n" +
"/Type /Pages\n" +
getKids(pictures) +
"/Count " + pictures.Count + "\n" +
">>\n" +
"endobj\n" +
"1 0 obj\n" +
"<<\n" +
"/Type /Catalog\n" +
"/Pages 2 0 R\n" +
"/PageMode /UseNone\n" +
"/PageLayout /SinglePage\n" +
"/Metadata 7 0 R\n" +
">>\n" +
"endobj\n" +
N + " 0 obj\n" +
"<<\n" +
"/Creator(" + company + ")\n" +
"/Producer(" + company + ")\n" +
"/CreationDate (D:" + dateTimeStr + ")\n" +
"/ModDate (D:" + dateTimeStr + ")\n" +
">>\n" +
"endobj\n" +
"xref\n" +
"0 " + (N + 1) + "\n" +
"0000000000 65535 f\n" +
"0000224088 00000 n\n" +
"0000224031 00000 n\n" +
"0000000015 00000 n\n" +
"0000222920 00000 n\n" +
"0000222815 00000 n\n" +
"0000224153 00000 n\n" +
"0000223050 00000 n\n" +
"trailer\n" +
"<<\n" +
"/Size " + (N + 1) + "\n" +
"/Root 1 0 R\n" +
"/Info 6 0 R\n" +
">>\n" +
"startxref\n" +
"0\n" +
"%% EOF";
sbyte[] part1 = file1.GetBytes();
sbyte[] part2 = file2.GetBytes();
List<sbyte[]> fileContents = new List<sbyte[]>();
fileContents.Add(part1);
for (int i = 0; i < pictures.Count; i++)
{
fileContents.Add(getPageFromImage(pictures[i], i));
}
fileContents.Add(part2);
return getFileContent(fileContents);
}
private string getKids(List<Picture> pictures)
{
string kids = "/Kids[";
for (int i = 0; i < pictures.Count; i++)
{
kids += (3 * (i + 1) + 1) + " 0 R ";
}
kids += "]\n";
return kids;
}
private sbyte[] getPageFromImage(Picture picture, int P)
{
int N = (P + 1) * 3;
string imageStart =
N + " 0 obj\n" +
"<<\n" +
"/Type /XObject\n" +
"/Subtype /Image\n" +
"/Width " + picture.Width + "\n" +
"/Height " + picture.Height + "\n" +
"/BitsPerComponent 8\n" +
"/ColorSpace /DeviceRGB\n" +
"/Filter /DCTDecode\n" +
"/Length " + picture.Data.Length + "\n" +
">>\n" +
"stream\n";
string dimentions = "q\n" +
picture.Width + " 0 0 " + picture.Height + " 0 0 cm\n" +
"/X0 Do\n" +
"Q\n";
string imageEnd =
"\nendstream\n" +
"endobj\n" +
(N + 2) + " 0 obj\n" +
"<<\n" +
"/Filter []\n" +
"/Length " + dimentions.Length + "\n" +
">>\n" +
"stream\n";
string page =
"\nendstream\n" +
"endobj\n" +
(N + 1) + " 0 obj\n" +
"<<\n" +
"/Type /Page\n" +
"/MediaBox[0 0 " + picture.Width + " " + picture.Height + "]\n" +
"/Resources <<\n" +
"/XObject <<\n" +
"/X0 " + N + " 0 R\n" +
">>\n" +
">>\n" +
"/Contents 5 0 R\n" +
"/Parent 2 0 R\n" +
">>\n" +
"endobj\n";
List<sbyte[]> fileContents = new List<sbyte[]>();
fileContents.Add(imageStart.GetBytes());
fileContents.Add(byteArrayToSbyteArray(picture.Data));
fileContents.Add(imageEnd.GetBytes());
fileContents.Add(dimentions.GetBytes());
fileContents.Add(page.GetBytes());
return getFileContent(fileContents);
}
private sbyte[] byteArrayToSbyteArray(byte[] data)
{
sbyte[] data2 = new sbyte[data.Length];
for (int i = 0; i < data2.Length; i++)
{
data2[i] = (sbyte)data[i];
}
return data2;
}
private sbyte[] getFileContent(List<sbyte[]> fileContents)
{
int fileSize = 0;
foreach (sbyte[] content in fileContents)
{
fileSize += content.Length;
}
sbyte[] finaleFile = new sbyte[fileSize];
int index = 0;
foreach (sbyte[] content in fileContents)
{
for (int i = 0; i < content.Length; i++)
{
finaleFile[index + i] = content[i];
}
index += content.Length;
}
return finaleFile;
}
}
}
You can use the code in this easy way
///////////////////////////////////////Export PDF//////////////////////////////////////
private sbyte[] exportPDF(List<Picture> images)
{
if (imageBytesList.Count > 0)
{
PDFExport pdfExport = new PDFExport();
sbyte[] fileData = pdfExport.createFile(images);
return fileData;
}
return null;
}
You need Acrobat to be installed. Tested on Acrobat DC. This is a VB.net code. Due to that these objects are COM objects, you shall do a 'release object', not just a '=Nothing". You can convert this code here: https://converter.telerik.com/
Private Function ImageToPDF(ByVal FilePath As String, ByVal DestinationFolder As String) As String
Const PDSaveCollectGarbage As Integer = 32
Const PDSaveLinearized As Integer = 4
Const PDSaveFull As Integer = 1
Dim PDFAVDoc As Object = Nothing
Dim PDFDoc As Object = Nothing
Try
'Check destination requirements
If Not DestinationFolder.EndsWith("\") Then DestinationFolder += "\"
If Not System.IO.Directory.Exists(DestinationFolder) Then Throw New Exception("Destination directory does not exist: " & DestinationFolder)
Dim CreatedFile As String = DestinationFolder & System.IO.Path.GetFileNameWithoutExtension(FilePath) & ".pdf"
'Avoid conflicts, therefore previous file there will be deleted
If File.Exists(CreatedFile) Then File.Delete(CreatedFile)
'Get PDF document
PDFAVDoc = GetPDFAVDoc(FilePath)
PDFDoc = PDFAVDoc.GetPDDoc
If Not PDFDoc.Save(PDSaveCollectGarbage Or PDSaveLinearized Or PDSaveFull, CreatedFile) Then Throw New Exception("PDF file cannot be saved: " & PDFDoc.GetFileName())
If Not PDFDoc.Close() Then Throw New Exception("PDF file could not be closed: " & PDFDoc.GetFileName())
PDFAVDoc.Close(1)
Return CreatedFile
Catch Ex As Exception
Throw Ex
Finally
System.Runtime.InteropServices.Marshal.ReleaseComObject(PDFDoc)
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(PDFDoc)
PDFDoc = Nothing
System.Runtime.InteropServices.Marshal.ReleaseComObject(PDFAVDoc)
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(PDFAVDoc)
PDFAVDoc = Nothing
GC.Collect()
GC.WaitForPendingFinalizers()
GC.Collect()
End Try
End Function
not sure if you're looking for just free / open source solutions or considering commercial ones as well. But if you're including commercial solutions, there's a toolkit called EasyPDF SDK that offers an API for converting images (plus a number of other file types) to PDF. It supports C# and can be found here:
http://www.pdfonline.com/
The C# code would look as follows:
Printer oPrinter = new Printer();
ImagePrintJob oPrintJob = oPrinter.ImagePrintJob;
oPrintJob.PrintOut(imageFile, pdfFile);
To be fully transparent, I should disclaim that I do work for the makers of EasyPDF SDK (hence my handle), so this suggestion is not without some personal bias :) But feel free to check out the eval version if you're interested. Cheers!
I use Sautinsoft, its very simple:
SautinSoft.PdfMetamorphosis p = new SautinSoft.PdfMetamorphosis();
p.Serial="xxx";
p.HtmlToPdfConvertStringToFile("<html><body><img src=\""+filename+"\"></img></body></html>","output.pdf");
You may try to convert any Images to PDF using this code sample:
PdfVision v = new PdfVision();
ImageToPdfOptions options = new ImageToPdfOptions();
options.JpegQuality = 95;
try
{
v.ConvertImageToPdf(new string[] {inpFile}, outFile, options);
System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile) { UseShellExecute = true });
}
catch (Exception ex)
{
Console.WriteLine($"Error: {ex.Message}");
Console.ReadLine();
}
Or if you need to convert Image Class to PDF:
System.Drawing.Image image = Image.FromFile(#"..\..\image-jpeg.jpg");
string outFile = new FileInfo(#"Result.pdf").FullName;
PdfVision v = new PdfVision();
ImageToPdfOptions options = new ImageToPdfOptions();
options.PageSetup.PaperType = PaperType.Auto;
byte[] imgBytes = null;
using (MemoryStream ms = new System.IO.MemoryStream())
{
image.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
imgBytes = ms.ToArray();
}
try
{
v.ConvertImageToPdf(imgBytes, outFile, options);
System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile) { UseShellExecute = true });
}
catch (Exception ex)
{
Console.WriteLine($"Error: {ex.Message}");
Console.ReadLine();
}
Many diff tools out there. One I use is PrimoPDF (FREE) http://www.primopdf.com/ you go to print the file and you print it to pdf format onto your drive. works on Windows